diff options
author | seb <seb> | 2007-12-15 16:41:50 +0000 |
---|---|---|
committer | seb <seb> | 2007-12-15 16:41:50 +0000 |
commit | 245aa6ad7f9c279f958d37e5d51c9f252fc6bab3 (patch) | |
tree | b650dc038d53983229200efc6a846fbe07b88978 /sysutils | |
parent | f769e19fa54e69aba94204c9a53cd756b7b8825b (diff) | |
download | pkgsrc-245aa6ad7f9c279f958d37e5d51c9f252fc6bab3.tar.gz |
Update to version 4.10.1.
Placate pkglint. Most of the package's patches had been integrated.
Approved by heinz@
Changes since last packaged version (4.9):
Version 4.10.1
BUGFIXES:
* When monit sent alert, it reported that alert handler failed,
which was not true and the message was delivered in fact. This
bug was introduced in monit-4.10.
* Fix the memory usage report on machines with more then 4GB
physical memory running Mac OS X.
Version 4.10
NEW FEATURES AND FUNCTIONS:
* Monit from this version on is licensed under GPL version 3
* Added support for SMTP authentication and SSL for sending alerts.
Example syntax:
- plain athentication:
set mailserver
smtp.foo.bar username "user" password "hidden"
- plain athentication with ssl:
set mailserver
smtp.foo.bar username "user" password "hidden" using sslv3
- plain athentication with tls:
set mailserver
smtp.foo.bar username "user" password "hidden" using tlsv1
Thanks to Thomas Lohmueller for patch.
* Allow to set the location of monirc using 'configure --sysconfdir'
option during monit compilation. Thanks to Klaus Heinz for patch.
* Monit now log user actions requested via monit's http interface.
* Monit http interface now use the POST method for forms
(change is transparent from the user point of view).
* Monit ICMP echo/ping test now supports 20 echo requests per cycle at
maximum.
* When monit identifies the process as zombie, continue the monitoring
(formerly monit disabled monitoring of the given service and sent alert
since it was considered unmanageable).
* Fixed #21447: Monit now adds a (dummy) Message-id header in alert
mails to prevent any spam checkers to accidental filter out monit
alerts based on missing message-id.
* Removed C99 particulars from monit code to support non-C99 compilers.
REMOVED FEATURE
* Removed support for local redirects in the HTTP protocol test. Users
must provide the correct path for the resource they want to test.
BUGFIXES:
* Fixed a possible monit crash on exit if a match rule was used and
referred a file containing multiple expressions. Thanks to Stephen
Dowdy for report.
* Added patch from Klaus Heinz which fix a problem in the Log module
that had monit using an uninitialized mutex after a monitrc reload.
* Fixed a possible crash on monit start when the monit control file
contained exec action with argument longer then 256 bytes. Thanks
to Stevan Bajic for report.
* Fixed linux 32-bit system CPU usage statistics (the fix in 4.9 was
incomplete). If a server had a long/large uptime and high load, the
reported CPU usage could be incorrect. Thanks to Aleksander for report.
* Fixed a problem where monit would incorrect display an error in the
web interface status page. This could occur if a service had failed,
monit had reload and the state of the service had passed just after the
reload (for example due to changes of the configuration rules). Thanks to
Claus Klein for report and help with the patch.
* Avoid filling the log with "pidfile does not contain a valid pidnumber"
entries during debug
* Added patch from Dave Cheney, which fix and reactivate resource testing
for Mac OS X Tiger (Darwin 10.4.x).
* Limit the number of consecutive redirects in http protocol test to 64.
* Report as error when the redirect in http protocol test points to itself.
* Fix memory leak when regular expresion is used in monit configuration
and monit is reloaded. Thanks to Josh Kelley for patch.
* Allow the "if changed timestamp" test to refer to a non-existing file.
This could be useful if the service is monitored in non-active mode
and the file is expected to be created later.
* When 'if match' statement was used with the path to the regex file
containing more then one line and the exec action was used for this
rule, then monit failed to parse the configuration and refused to start.
Thanks to Nathan for report.
* contrib/wap.php updated. Thanks to David Fletcher.
* Fixed #21354: Usage of the IMAP Protocol test was impossible due to a small
typo in the control file parser and the test would fall back to DEFAULT.
Thanks to Wolfgang Breyha for reporting the bug.
Diffstat (limited to 'sysutils')
-rw-r--r-- | sysutils/monit/Makefile | 15 | ||||
-rw-r--r-- | sysutils/monit/PLIST | 12 | ||||
-rw-r--r-- | sysutils/monit/distinfo | 17 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-aa | 29 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ab | 15 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ac | 15 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ad | 39 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ae | 3900 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-af | 16 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ag | 15 | ||||
-rw-r--r-- | sysutils/monit/patches/patch-ah | 23 |
11 files changed, 32 insertions, 4064 deletions
diff --git a/sysutils/monit/Makefile b/sysutils/monit/Makefile index 8102f755358..f5170e35f90 100644 --- a/sysutils/monit/Makefile +++ b/sysutils/monit/Makefile @@ -1,7 +1,7 @@ -# $NetBSD: Makefile,v 1.1.1.1 2007/04/30 20:53:46 heinz Exp $ +# $NetBSD: Makefile,v 1.2 2007/12/15 16:41:50 seb Exp $ # -DISTNAME= monit-4.9 +DISTNAME= monit-4.10.1 CATEGORIES= sysutils MASTER_SITES= http://www.tildeslash.com/monit/dist/ @@ -27,11 +27,11 @@ PKG_SUGGESTED_OPTIONS= ssl CONFIGURE_ARGS+= --without-ssl .endif CONFIGURE_ARGS+= --with-ssl-dir=${SSLBASE:Q} -CONFIGURE_ARGS+= --sysconfdir=${PKG_SYSCONFDIR:Q} +CONFIGURE_ARGS+= --sysconfdir=${PKG_SYSCONFDIR} PKG_SYSCONFSUBDIR= monit RCD_SCRIPTS= monit -RCD_SCRIPT_SRC.monit= ${FILESDIR}/monit-rc-script.sh +RCD_SCRIPT_SRC.monit= ${FILESDIR}/monit-rc-script.sh CONF_FILES= ${EGDIR}/monitrc.sample ${PKG_SYSCONFDIR}/monitrc CONF_FILES_MODE= 0600 @@ -54,8 +54,11 @@ SUBST_SED.monit= -e "s|^\# *set *daemon|set daemon|" SUBST_SED.monit+= -e "s|include */etc/monit.d|include ${PKG_SYSCONFDIR}/monit.d|" post-extract: - ${MV} -f ${WRKSRC}/monit.1 ${WRKSRC}/monit.1.obsolete - cd ${WRKSRC}/contrib && ${PAX} -zrf monit-OSX-startup.tar.gz + cd ${WRKSRC}/contrib && pax -zrf monit-OSX-startup.tar.gz + +# Perform configure substitutions on monit.1 +post-configure: + cd ${WRKSRC} && mv monit.1 monit.1.in && ./config.status --file=monit.1 post-install: ${INSTALL_DATA_DIR} ${DESTDIR}${DOCDIR} diff --git a/sysutils/monit/PLIST b/sysutils/monit/PLIST index 2590931ae08..569f2b345a9 100644 --- a/sysutils/monit/PLIST +++ b/sysutils/monit/PLIST @@ -1,4 +1,4 @@ -@comment $NetBSD: PLIST,v 1.1.1.1 2007/04/30 20:53:46 heinz Exp $ +@comment $NetBSD: PLIST,v 1.2 2007/12/15 16:41:50 seb Exp $ bin/monit man/man1/monit.1 share/docs/monit/CHANGES.txt @@ -12,16 +12,16 @@ share/docs/monit/README share/docs/monit/README.SSL share/docs/monit/STATUS share/docs/monit/UPGRADE.txt -share/examples/monit/monitrc.sample -share/examples/monit/monit.php -share/examples/monit/monitrc-gentoo -share/examples/monit/wap.php share/examples/monit/MacOSX/README share/examples/monit/MacOSX/StartupParameters.plist share/examples/monit/MacOSX/monit share/examples/monit/MacOSX/monit.plist share/examples/monit/MacOSX/monitrc +share/examples/monit/monit.php +share/examples/monit/monitrc-gentoo +share/examples/monit/monitrc.sample +share/examples/monit/wap.php share/examples/rc.d/monit -@dirrm share/docs/monit @dirrm share/examples/monit/MacOSX @dirrm share/examples/monit +@dirrm share/docs/monit diff --git a/sysutils/monit/distinfo b/sysutils/monit/distinfo index 94a0197b4a5..4cfcfb69e61 100644 --- a/sysutils/monit/distinfo +++ b/sysutils/monit/distinfo @@ -1,13 +1,6 @@ -$NetBSD: distinfo,v 1.1.1.1 2007/04/30 20:53:46 heinz Exp $ +$NetBSD: distinfo,v 1.2 2007/12/15 16:41:50 seb Exp $ -SHA1 (monit-4.9.tar.gz) = a910b07a9ecc7d2803368d7d114df01f4e0916cd -RMD160 (monit-4.9.tar.gz) = 5c9c9ac48d22d327818253122418e9b4c7f12587 -Size (monit-4.9.tar.gz) = 573711 bytes -SHA1 (patch-aa) = 11d458ca0e8a4047b45651ead153d4acc167d462 -SHA1 (patch-ab) = d97d12c660d170dbd527d5055c2149faf8197838 -SHA1 (patch-ac) = 606529cf1b739591da6ed021866e5390dc9fed9e -SHA1 (patch-ad) = a4d9464bf6c9ed6ab6f725339787fb4308735fb5 -SHA1 (patch-ae) = 0e782ca1cf00a6bdb4edd1761761833ff988b554 -SHA1 (patch-af) = dc51bf856e7a6747c51ba8385c7ccd15dc26964e -SHA1 (patch-ag) = 8c4a29764732f4b7f1ebd05f9390448af07b1797 -SHA1 (patch-ah) = 9e9951aec935b242219164d9f7206d417a189679 +SHA1 (monit-4.10.1.tar.gz) = c87aa0c6e0b1d13f46b7e9d84937191e25a907a6 +RMD160 (monit-4.10.1.tar.gz) = 6c517b19bc43f4023dfca4de1df09272b41af02d +Size (monit-4.10.1.tar.gz) = 606273 bytes +SHA1 (patch-aa) = b51792edf22fb9867d45a4adb2aadd03dbe5467c diff --git a/sysutils/monit/patches/patch-aa b/sysutils/monit/patches/patch-aa index a14963357c6..403769220da 100644 --- a/sysutils/monit/patches/patch-aa +++ b/sysutils/monit/patches/patch-aa @@ -1,20 +1,15 @@ -$NetBSD: patch-aa,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ +$NetBSD: patch-aa,v 1.2 2007/12/15 16:41:51 seb Exp $ -Shut up warnings about "subscript has type char" +Fix for LP64 big-endian platforms. ---- util.c.orig 2007-02-03 00:00:25.000000000 +0100 -+++ util.c -@@ -367,11 +367,11 @@ int Util_countWords(char *s, const char - */ - int Util_startsWith(const char *a, const char *b) { - -- if((!a || !b) || toupper(*a)!=toupper(*b)) return FALSE; -+ if((!a || !b) || toupper((int)*a)!=toupper((int)*b)) return FALSE; - - while(*a && *b) { - -- if(toupper(*a++) != toupper(*b++)) return FALSE; -+ if(toupper((int)*a++) != toupper((int)*b++)) return FALSE; - - } +--- http/engine.c.orig 2007-07-29 20:23:26.000000000 +0000 ++++ http/engine.c +@@ -246,7 +246,7 @@ int add_host_allow(char *name) { + struct sockaddr_in *sin = (struct sockaddr_in *)_res->ai_addr; + NEW(h); +- memcpy(&h->network, &sin->sin_addr, 4); ++ h->network = sin->sin_addr.s_addr; + h->mask= 0xffffffff; + LOCK(hostlist_mutex) + if(hostlist) { diff --git a/sysutils/monit/patches/patch-ab b/sysutils/monit/patches/patch-ab deleted file mode 100644 index 8e9c149db06..00000000000 --- a/sysutils/monit/patches/patch-ab +++ /dev/null @@ -1,15 +0,0 @@ -$NetBSD: patch-ab,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -Shut up warnings about "subscript has type char" - ---- p.y.orig 2007-01-12 22:17:12.000000000 +0100 -+++ p.y -@@ -3320,7 +3320,7 @@ static int cleanup_hash_string(char *has - - if (isxdigit((int) hashstring[i])) { - -- hashstring[j]=tolower(hashstring[i]); -+ hashstring[j]=tolower((int)hashstring[i]); - j++; - - } diff --git a/sysutils/monit/patches/patch-ac b/sysutils/monit/patches/patch-ac deleted file mode 100644 index e683236e4c1..00000000000 --- a/sysutils/monit/patches/patch-ac +++ /dev/null @@ -1,15 +0,0 @@ -$NetBSD: patch-ac,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -C source files must be told where the "sysconfdir" is. - ---- Makefile.in.orig 2007-01-11 23:04:46.000000000 +0100 -+++ Makefile.in -@@ -61,7 +61,7 @@ PROG = monit - - INCDIR = -I. -I./device -I./http -I./process -I./protocols - LIB = @LEXLIB@ @LIBS@ --DEFINES = -D@ARCH@ -+DEFINES = -D@ARCH@ -DSYSCONFDIR="\"@sysconfdir@\"" - - # ------------------------------------------------------------------- # - diff --git a/sysutils/monit/patches/patch-ad b/sysutils/monit/patches/patch-ad deleted file mode 100644 index 3f4129723fa..00000000000 --- a/sysutils/monit/patches/patch-ad +++ /dev/null @@ -1,39 +0,0 @@ -$NetBSD: patch-ad,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -Pre-processor macro SYSCONFDIR will be defined on the command line. -SYSCONFDIR has to be a string enclosed by "" to enable string literal -concatenation. - ---- file.c.orig 2007-01-03 22:02:06.000000000 +0100 -+++ file.c -@@ -145,9 +145,9 @@ time_t File_getTimestamp(char *object, m - - /** - * Search the system for the monit control file. Try first ~/.monitrc, -- * if that fails try /etc/monitrc, then /usr/local/etc/monitrc and -- * finally ./monitrc. Exit the application if the control file was -- * not found. -+ * if that fails try /etc/monitrc, then SYSCONFDIR/monitrc (default: -+ * /usr/local/etc/monitrc) and finally ./monitrc. -+ * Exit the application if the control file was not found. - * @return The location of monits control file (monitrc) - */ - char *File_findControlFile() { -@@ -164,7 +164,7 @@ char *File_findControlFile() { - return (rcfile); - } - memset(rcfile, 0, STRLEN); -- snprintf(rcfile, STRLEN, "/usr/local/etc/%s", MONITRC); -+ snprintf(rcfile, STRLEN, SYSCONFDIR "/%s", MONITRC); - if(File_exist(rcfile)) { - return (rcfile); - } -@@ -174,7 +174,7 @@ char *File_findControlFile() { - return (rcfile); - } - LogError("%s: Cannot find the control file at " -- "~/.%s, /etc/%s, /usr/local/etc/%s or at ./%s \n", -+ "~/.%s, /etc/%s, " SYSCONFDIR "/%s or at ./%s \n", - prog, MONITRC, MONITRC, MONITRC, MONITRC); - exit(1); - diff --git a/sysutils/monit/patches/patch-ae b/sysutils/monit/patches/patch-ae deleted file mode 100644 index e2bd6505cb9..00000000000 --- a/sysutils/monit/patches/patch-ae +++ /dev/null @@ -1,3900 +0,0 @@ -$NetBSD: patch-ae,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -Create monit.1.in so we can replace @sysconfdir@ in the configure script. - ---- monit.1.in.orig 2007-04-16 23:45:44.000000000 +0200 -+++ monit.1.in -@@ -0,0 +1,3893 @@ -+.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32 -+.\" -+.\" Standard preamble: -+.\" ======================================================================== -+.de Sh \" Subsection heading -+.br -+.if t .Sp -+.ne 5 -+.PP -+\fB\\$1\fR -+.PP -+.. -+.de Sp \" Vertical space (when we can't use .PP) -+.if t .sp .5v -+.if n .sp -+.. -+.de Vb \" Begin verbatim text -+.ft CW -+.nf -+.ne \\$1 -+.. -+.de Ve \" End verbatim text -+.ft R -+.fi -+.. -+.\" Set up some character translations and predefined strings. \*(-- will -+.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -+.\" double quote, and \*(R" will give a right double quote. \*(C+ will -+.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -+.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -+.\" nothing in troff, for use with C<>. -+.tr \(*W- -+.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -+.ie n \{\ -+. ds -- \(*W- -+. ds PI pi -+. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -+. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -+. ds L" "" -+. ds R" "" -+. ds C` "" -+. ds C' "" -+'br\} -+.el\{\ -+. ds -- \|\(em\| -+. ds PI \(*p -+. ds L" `` -+. ds R" '' -+'br\} -+.\" -+.\" If the F register is turned on, we'll generate index entries on stderr for -+.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index -+.\" entries marked with X<> in POD. Of course, you'll have to process the -+.\" output yourself in some meaningful fashion. -+.if \nF \{\ -+. de IX -+. tm Index:\\$1\t\\n%\t"\\$2" -+.. -+. nr % 0 -+. rr F -+.\} -+.\" -+.\" For nroff, turn off justification. Always turn off hyphenation; it makes -+.\" way too many mistakes in technical documents. -+.hy 0 -+.if n .na -+.\" -+.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). -+.\" Fear. Run. Save yourself. No user-serviceable parts. -+. \" fudge factors for nroff and troff -+.if n \{\ -+. ds #H 0 -+. ds #V .8m -+. ds #F .3m -+. ds #[ \f1 -+. ds #] \fP -+.\} -+.if t \{\ -+. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -+. ds #V .6m -+. ds #F 0 -+. ds #[ \& -+. ds #] \& -+.\} -+. \" simple accents for nroff and troff -+.if n \{\ -+. ds ' \& -+. ds ` \& -+. ds ^ \& -+. ds , \& -+. ds ~ ~ -+. ds / -+.\} -+.if t \{\ -+. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -+. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -+. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -+. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -+. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -+. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -+.\} -+. \" troff and (daisy-wheel) nroff accents -+.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -+.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -+.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -+.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -+.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -+.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -+.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -+.ds ae a\h'-(\w'a'u*4/10)'e -+.ds Ae A\h'-(\w'A'u*4/10)'E -+. \" corrections for vroff -+.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -+.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -+. \" for low resolution devices (crt and lpr) -+.if \n(.H>23 .if \n(.V>19 \ -+\{\ -+. ds : e -+. ds 8 ss -+. ds o a -+. ds d- d\h'-1'\(ga -+. ds D- D\h'-1'\(hy -+. ds th \o'bp' -+. ds Th \o'LP' -+. ds ae ae -+. ds Ae AE -+.\} -+.rm #[ #] #H #V #F C -+.\" ======================================================================== -+.\" -+.IX Title "MONIT 1" -+.TH MONIT 1 "www.tildeslash.com" "February 19. 2007" "User Commands" -+.SH "NAME" -+monit \- utility for monitoring services on a Unix system -+.SH "SYNOPSIS" -+.IX Header "SYNOPSIS" -+\&\fBmonit\fR [options] {arguments} -+.SH "DESCRIPTION" -+.IX Header "DESCRIPTION" -+\&\fBmonit\fR is a utility for managing and monitoring processes, -+files, directories and devices on a Unix system. Monit conducts -+automatic maintenance and repair and can execute meaningful -+causal actions in error situations. E.g. monit can start a -+process if it does not run, restart a process if it does not -+respond and stop a process if it uses to much resources. You may -+use monit to monitor files, directories and devices for changes, -+such as timestamps changes, checksum changes or size changes. -+.PP -+Monit is controlled via an easy to configure control file based -+on a free\-format, token-oriented syntax. Monit logs to syslog or -+to its own log file and notifies you about error conditions via -+customizable alert messages. Monit can perform various \s-1TCP/IP\s0 -+network checks, protocol checks and can utilize \s-1SSL\s0 for such -+checks. Monit provides a http(s) interface and you may use a -+browser to access the monit program. -+.SH "GENERAL OPERATION" -+.IX Header "GENERAL OPERATION" -+The behavior of monit is controlled by command-line options -+\&\fIand\fR a run control file, \fI~/.monitrc\fR, the syntax of which we -+describe in a later section. Command-line options override -+\&\fI.monitrc\fR declarations. -+.PP -+The following options are recognized by monit. However, it is -+recommended that you set options (when applicable) directly in -+the \fI.monitrc\fR control file. -+.Sh "General Options and Arguments" -+.IX Subsection "General Options and Arguments" -+\&\fB\-c\fR \fIfile\fR -+ Use this control file -+.PP -+\&\fB\-d\fR \fIn\fR -+ Run as a daemon once per \fIn\fR seconds -+.PP -+\&\fB\-g\fR -+ Set group name for start, stop, restart and status -+.PP -+\&\fB\-l\fR \fIlogfile\fR -+ Print log information to this file -+.PP -+\&\fB\-p\fR \fIpidfile\fR -+ Use this lock file in daemon mode -+.PP -+\&\fB\-s\fR \fIstatefile\fR -+ Write state information to this file -+.PP -+\&\fB\-I\fR -+ Do not run in background (needed for run from init) -+.PP -+\&\fB\-t\fR -+ Run syntax check for the control file -+.PP -+\&\fB\-v\fR -+ Verbose mode, work noisy (diagnostic output) -+.PP -+\&\fB\-H\fR \fI[filename]\fR -+ Print \s-1MD5\s0 and \s-1SHA1\s0 hashes of the file or of stdin if the -+ filename is omitted; monit will exit afterwards -+.PP -+\&\fB\-V\fR -+ Print version number and patch level -+.PP -+\&\fB\-h\fR -+ Print a help text -+.PP -+In addition to the options above, monit can be started with one -+of the following action arguments; monit will then execute the -+action and exit without transforming itself to a daemon. -+.PP -+\&\fBstart all\fR -+ Start all services listed in the control file and -+ enable monitoring for them. If the group option is -+ set, only start and enable monitoring of services in -+ the named group. -+.PP -+\&\fBstart name\fR -+ Start the named service and enable monitoring for -+ it. The name is a service entry name from the -+ monitrc file. -+.PP -+\&\fBstop all\fR -+ Stop all services listed in the control file and -+ disable their monitoring. If the group option is -+ set, only stop and disable monitoring of the services -+ in the named group. -+.PP -+\&\fBstop name\fR -+ Stop the named service and disable its monitoring. -+ The name is a service entry name from the monitrc -+ file. -+.PP -+\&\fBrestart all\fR -+ Stop and start \fIall\fR services. If the group option -+ is set, only restart the services in the named group. -+.PP -+\&\fBrestart name\fR -+ Restart the named service. The name is a service entry -+ name from the monitrc file. -+.PP -+\&\fBmonitor all\fR -+ Enable monitoring of all services listed in the -+ control file. If the group option is set, only start -+ monitoring of services in the named group. -+.PP -+\&\fBmonitor name\fR -+ Enable monitoring of the named service. The name is -+ a service entry name from the monitrc file. Monit will -+ also enable monitoring of all services this service -+ depends on. -+.PP -+\&\fBunmonitor all\fR -+ Disable monitoring of all services listed in the -+ control file. If the group option is set, only disable -+ monitoring of services in the named group. -+.PP -+\&\fBunmonitor name\fR -+ Disable monitoring of the named service. The name is -+ a service entry name from the monitrc file. Monit -+ will also disable monitoring of all services that -+ depends on this service. -+.PP -+\&\fBstatus\fR -+ Print full status information for each service. -+.PP -+\&\fBsummary\fR -+ Print short status information for each service. -+.PP -+\&\fBreload\fR -+ Reinitialize a running monit daemon, the daemon will -+ reread its configuration, close and reopen log files. -+.PP -+\&\fBquit\fR -+ Kill a monit daemon process -+.PP -+\&\fBvalidate\fR -+ Check all services listed in the control file. This -+ action is also the default behavior when monit runs -+ in daemon mode. -+.SH "WHAT TO MONITOR" -+.IX Header "WHAT TO MONITOR" -+You may use monit to monitor daemon processes or similar programs -+running on localhost. Monit is particular useful for monitoring -+daemon processes, such as those started at system boot time from -+/etc/init.d/. For instance sendmail, sshd, apache and mysql. In -+difference to many monitoring systems, monit can act if an error -+situation should occur, e.g.; if sendmail is not running, monit -+can start sendmail or if apache is using to much system resources -+(e.g. if a DoS attack is in progress) monit can stop or restart -+apache and send you an alert message. Monit does also monitor -+process characteristics, such as; if a process has become a -+zombie and how much memory or cpu cycles a process is using. -+.PP -+You may also use monit to monitor files, directories and devices -+on localhost. Monit can monitor these items for changes, such as -+timestamps changes, checksum changes or size changes. This is -+also useful for security reasons \- you can monitor the md5 -+checksum of files that should not change. -+.PP -+You may even use monit to monitor remote hosts. First and -+foremost monit is a utility for monitoring and mending services -+on localhost, but if a service depends on a remote service, -+e.g. a database server or an application server, it might by -+useful to be able to test a remote host as well. -+.PP -+You may monitor the general system-wide resources such as cpu -+usage, memory and load average. -+.SH "HOW TO MONITOR" -+.IX Header "HOW TO MONITOR" -+monit is configured and controlled via a control file called -+\&\fBmonitrc\fR. The default location for this file is ~/.monitrc. If -+this file does not exist, monit will try /etc/monitrc, then -+@sysconfdir@/monitrc and finally ./monitrc. -+.PP -+A monit control file consists of a series of service entries and -+global option statements in a free\-format, token-oriented syntax. -+Comments begin with a # and extend through the end of the line. -+There are three kinds of tokens in the control file: grammar -+keywords, numbers and strings. -+.PP -+On a semantic level, the control file consists of three types of -+statements: -+.IP "1. Global set-statements" 4 -+.IX Item "1. Global set-statements" -+A global set-statement starts with the keyword \fIset\fR and the -+item to configure. -+.IP "2. Global include-statement" 4 -+.IX Item "2. Global include-statement" -+The include statement consists of the keyword \fIinclude\fR and -+a glob string. -+.IP "3. One or more service entry statements." 4 -+.IX Item "3. One or more service entry statements." -+A service entry starts with the keyword \fIcheck\fR followed by the -+service type. -+.PP -+This is the hello galaxy version of a monit control file: -+.PP -+.Vb 3 -+\& # -+\& # monit control file -+\& # -+.Ve -+.PP -+.Vb 6 -+\& set daemon 120 # Poll at 2\-minute intervals -+\& set logfile syslog facility log_daemon -+\& set alert foo@bar.baz -+\& set httpd port 2812 and use address localhost -+\& allow localhost # Allow localhost to connect -+\& allow admin:monit # Allow Basic Auth -+.Ve -+.PP -+.Vb 7 -+\& check system myhost.mydomain.tld -+\& if loadavg (1min) > 4 then alert -+\& if loadavg (5min) > 2 then alert -+\& if memory usage > 75% then alert -+\& if cpu usage (user) > 70% then alert -+\& if cpu usage (system) > 30% then alert -+\& if cpu usage (wait) > 20% then alert -+.Ve -+.PP -+.Vb 11 -+\& check process apache -+\& with pidfile "/usr/local/apache/logs/httpd.pid" -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if 2 restarts within 3 cycles then timeout -+\& if totalmem > 100 Mb then alert -+\& if children > 255 for 5 cycles then stop -+\& if cpu usage > 95% for 3 cycles then restart -+\& if failed port 80 protocol http then restart -+\& group server -+\& depends on httpd.conf, httpd.bin -+.Ve -+.PP -+.Vb 5 -+\& check file httpd.conf -+\& with path /usr/local/apache/conf/httpd.conf -+\& # Reload apache if the httpd.conf file was changed -+\& if changed checksum -+\& then exec "/usr/local/apache/bin/apachectl graceful" -+.Ve -+.PP -+.Vb 7 -+\& check file httpd.bin -+\& with path /usr/local/apache/bin/httpd -+\& # Run /watch/dog in the case that the binary was changed -+\& # and alert in the case that the checksum value recovered -+\& # later -+\& if failed checksum then exec "/watch/dog" -+\& else if recovered then alert -+.Ve -+.PP -+.Vb 2 -+\& include /etc/monit/mysql.monitrc -+\& include /etc/monit/mail/*.monitrc -+.Ve -+.PP -+This example illustrate a service entry for monitoring the apache -+web server process as well as related files. The meaning of the -+various statements will be explained in the following sections. -+.SH "LOGGING" -+.IX Header "LOGGING" -+monit will log status and error messages to a log file. Use the -+\&\fIset logfile\fR statement in the monitrc control file. To setup -+monit to log to its own logfile, use e.g. \fIset logfile -+/var/log/monit.log\fR. If \fBsyslog\fR is given as a value for the -+\&\fI\-l\fR command-line switch (or the keyword \fIset logfile syslog\fR -+is found in the control file) monit will use the \fBsyslog\fR system -+daemon to log messages. The priority is assigned to each message -+based on the context. To turn off logging, simply do not set -+the logfile in the control file (and of course, do not use the \-l -+switch) -+.SH "DAEMON MODE" -+.IX Header "DAEMON MODE" -+The \fI\-d interval\fR command-line switch runs monit in daemon -+mode. You must specify a numeric argument which is a polling -+interval in seconds. -+.PP -+In daemon mode, monit detaches from the console, puts itself in -+the background and runs continuously, monitoring each specified -+service and then goes to sleep for the given poll interval. -+.PP -+.Vb 1 -+\& Simply invoking -+.Ve -+.PP -+.Vb 1 -+\& monit \-d 300 -+.Ve -+.PP -+will poll all services described in your \fI~/.monitrc\fR file every -+5 minutes. -+.PP -+It is strongly recommended to set the poll interval in your -+~/.monitrc file instead, by using \fIset daemon \f(BIn\fI\fR, where \fBn\fR -+is an integer number of seconds. If you do this, monit will -+always start in daemon mode (as long as no action arguments are -+given). -+.PP -+Monit makes a per-instance lock-file in daemon mode. If you need -+more monit instances, you will need more configuration files, -+each pointing to its own lock\-file. -+.PP -+Calling \fImonit\fR with a monit daemon running in the background -+sends a wake-up signal to the daemon, forcing it to check -+services immediately. -+.PP -+The \fIquit\fR argument will kill a running daemon process instead -+of waking it up. -+.SH "INIT SUPPORT" -+.IX Header "INIT SUPPORT" -+Monit can run and be controlled from \fIinit\fR. If monit should -+crash, \fIinit\fR will re-spawn a new monit process. Using init to -+start monit is probably the best way to run monit if you want to -+be certain that you always have a running monit daemon on your -+system. (It's obvious, but never the less worth to stress; Make -+sure that the control file does not have any syntax errors before -+you start monit from init. Also, make sure that if you run monit -+from init, that you do not start monit from a startup scripts as -+well). -+.PP -+To setup monit to run from init, you can either use the 'set -+init' statement in monit's control file or use the \-I option from -+the command line and here is what you must add to /etc/inittab: -+.PP -+.Vb 2 -+\& # Run monit in standard run\-levels -+\& mo:2345:respawn:/usr/local/bin/monit \-Ic /etc/monitrc -+.Ve -+.PP -+After you have modified init's configuration file, you can run -+the following command to re-examine /etc/inittab and start monit: -+.PP -+.Vb 1 -+\& telinit q -+.Ve -+.PP -+For systems without telinit: -+.PP -+.Vb 1 -+\& kill \-1 1 -+.Ve -+.PP -+If monit is used to monitor services that are also started at -+boot time (e.g. services started via \s-1SYSV\s0 init rc scripts or via -+inittab) then, in some cases, a race condition could occur. That -+is; if a service is slow to start, monit can assume that the -+service is not running and possibly try to start it and raise an -+alert, while, in fact the service is already about to start or -+already in its startup sequence. Please see the \s-1FAQ\s0 for solutions -+to this problem. -+.SH "INCLUDE FILES" -+.IX Header "INCLUDE FILES" -+The monit control file, \fImonitrc\fR, can include additional -+configuration files. This feature helps to maintain a certain -+structure or to place repeating settings into one file. Include -+statements can be placed at virtually any spot. The syntax is the -+following: -+.PP -+.Vb 1 -+\& INCLUDE globstring -+.Ve -+.PP -+The globstring is any kind of string as defined in \fIglob\fR\|(7). -+Thus, you can refer to a single file or you can load several -+files at once. In case you want to use whitespace in your string -+the globstring need to be embedded into quotes (') or double -+quotes ("). For example, -+.PP -+.Vb 1 -+\& INCLUDE "/etc/monit/monit configuration files/printer.*.monitrc" -+.Ve -+.PP -+loads any file matching the single globstring. If the globstring -+matches a directory instead of a file, it is silently ignored. -+.PP -+\&\fI\s-1INCLUDE\s0\fR statements in included files are parsed as in the main -+control file. -+.PP -+If the globstring matches several results, the files are included -+in a non sorted manner. If you need to rely on a certain order, -+you might need to use single \fIinclude\fR statements. -+.SH "GROUP SUPPORT" -+.IX Header "GROUP SUPPORT" -+Service entries in the control file, \fImonitrc\fR, can be grouped -+together by the \fIgroup\fR statement. The syntax is simply (keyword -+in capital): -+.PP -+.Vb 1 -+\& GROUP groupname -+.Ve -+.PP -+With this statement it is possible to group similar service -+entries together and manage them as a whole. Monit provides -+functions to start, stop and restart a group of services, like -+so: -+.PP -+To start a group of services from the console: -+.PP -+.Vb 1 -+\& monit \-g <groupname> start -+.Ve -+.PP -+To stop a group of services: -+.PP -+.Vb 1 -+\& monit \-g <groupname> stop -+.Ve -+.PP -+To restart a group of services: -+.PP -+.Vb 1 -+\& monit \-g <groupname> restart -+.Ve -+.SH "MONITORING MODE" -+.IX Header "MONITORING MODE" -+Monit supports three monitoring modes per service: \fIactive\fR, -+\&\fIpassive\fR and \fImanual\fR. See also the example section below for -+usage of the mode statement. -+.PP -+In \fIactive\fR mode, monit will monitor a service and in case of -+problems monit will act and raise alerts, start, stop or restart -+the service. Active mode is the default mode. -+.PP -+In \fIpassive\fR mode, monit will passively monitor a service and -+specifically \fBnot\fR try to fix a problem, but it will still raise -+alerts in case of a problem. -+.PP -+For use in clustered environments there is also a \fImanual\fR -+mode. In this mode, monit will enter \fIactive\fR mode \fBonly\fR if a -+service was brought under monit's control, for example by -+executing the following command in the console: -+.PP -+.Vb 2 -+\& monit start sybase -+\& (monit will call sybase's start method and enable monitoring) -+.Ve -+.PP -+If a service was not started by monit or was stopped or disabled -+for example by: -+.PP -+.Vb 2 -+\& monit stop sybase -+\& (monit will call sybase's stop method and disable monitoring) -+.Ve -+.PP -+monit will not monitor the service. This allows for having -+services configured in monitrc and start it with monit only if it -+should run. This feature can be used to build a simple failsafe -+cluster. To see how, read more about how to setup a cluster with -+monit using the \fIheartbeat\fR system in the examples sections -+below. -+.SH "ALERT MESSAGES" -+.IX Header "ALERT MESSAGES" -+Monit will raise an email alert in the following situations: -+.PP -+.Vb 14 -+\& o A service timed out -+\& o A service does not exist -+\& o A service related data access problem -+\& o A service related program execution problem -+\& o A service is of invalid object type -+\& o A icmp problem -+\& o A port connection problem -+\& o A resource statement match -+\& o A file checksum problem -+\& o A file size problem -+\& o A file/directory timestamp problem -+\& o A file/directory/device permission problem -+\& o A file/directory/device uid problem -+\& o A file/directory/device gid problem -+.Ve -+.PP -+Monit will send an alert each time a monitored object changed. -+This involves: -+.PP -+.Vb 5 -+\& o Monit started, stopped or reloaded -+\& o A file checksum changed -+\& o A file size changed -+\& o A file content match -+\& o A file/directory timestamp changed -+.Ve -+.PP -+You use the alert statement to notify monit that you want alert -+messages sent to an email address. If you do not specify an alert -+statement, monit will not send alert messages. -+.PP -+There are two forms of alert statement: -+.PP -+.Vb 2 -+\& o Global \- common for all services -+\& o Local \- per service -+.Ve -+.PP -+In both cases you can use more than one alert statement. In other -+words, you can send many different emails to many different -+addresses. (in case you now got a new business idea: monit is not -+really suitable for sending spam). -+.PP -+Recipients in the global and in the local lists are alerted when -+a service failed, recovered or changed. If the same email address -+is in the global and in the local list, monit will send only one -+alert. Local (per service) defined alert email addresses override -+global addresses in case of a conflict. Finally, you may choose -+to only use a global alert list (recommended), a local per -+service list or both. -+.PP -+It is also possible to disable the global alerts localy for -+particular service(s) and recipients. -+.Sh "Setting a global alert statement" -+.IX Subsection "Setting a global alert statement" -+If a change occurred on a monitored services, monit will send an -+alert to all recipients in the global list who have registered -+interest for the event type. Here is the syntax for the global -+alert statement: -+.IP "\s-1SET\s0 \s-1ALERT\s0 mail-address [ [\s-1NOT\s0] {events}] [\s-1MAIL\-FORMAT\s0 {mail\-format}] [\s-1REMINDER\s0 number]" 4 -+.IX Item "SET ALERT mail-address [ [NOT] {events}] [MAIL-FORMAT {mail-format}] [REMINDER number]" -+.PP -+Simply using the following in the global section of monitrc: -+.PP -+.Vb 1 -+\& set alert foo@bar -+.Ve -+.PP -+will send a default email to the address foo@bar whenever an -+event occurred on any service. Such an event may be that a -+service timed out, a service was doesn't exist or a service does -+exist (on recovery) and so on. If you want to send alert messages -+to more email addresses, add a \fIset alert 'email'\fR statement for -+each address. -+.PP -+For explanations of the \fIevents, MAIL-FORMAT and \s-1REMINDER\s0\fR -+keywords above, please see below. -+.PP -+When you want to enable global alert recipient which will receive -+all event alerts except some type, you can also use the \s-1NOT\s0 negation -+option ahead of events list which allows you to set the recipient -+for \*(L"all but specified events\*(R" (see bellow for more details). -+.Sh "Setting a local alert statement" -+.IX Subsection "Setting a local alert statement" -+Each service can also have its own recipient list. -+.IP "\s-1ALERT\s0 mail-address [ [\s-1NOT\s0] {events}] [\s-1MAIL\-FORMAT\s0 {mail\-format}] [\s-1REMINDER\s0 number]" 4 -+.IX Item "ALERT mail-address [ [NOT] {events}] [MAIL-FORMAT {mail-format}] [REMINDER number]" -+.PP -+or -+.IP "\s-1NOALERT\s0 mail-address" 4 -+.IX Item "NOALERT mail-address" -+.PP -+If you only want an alert message sent for certain events for -+certain service(s), for example only for timeout events or only -+if a service died, then postfix the alert-statement with a filter -+block: -+.PP -+.Vb 3 -+\& check process myproc with pidfile /var/run/my.pid -+\& alert foo@bar only on { timeout, nonexist } -+\& ... -+.Ve -+.PP -+(\fIonly\fR and \fIon\fR are noise keywords, ignored by monit. As a -+side note; Noise keywords are used in the control file grammar to -+make an entry resemble English and thus make it easier to read -+(or, so goes the philosophy). The full set of available noise -+keywords are listed below in the Control File section). -+.PP -+You can also set the alert to send all events except specified -+using the list negation \- the word \fInot\fR ahead of the event -+list. For example when you want to receive alerts for all events -+except the monit instance related, you can write (note that the -+noise words 'but' and 'on' are optional): -+.PP -+.Vb 3 -+\& check system myserver -+\& alert foo@bar but not on { instance } -+\& ... -+.Ve -+.PP -+instead of: -+.PP -+.Vb 13 -+\& alert foo@bar on { change -+\& checksum -+\& data -+\& exec -+\& gid -+\& icmp -+\& invalid -+\& match -+\& nonexist -+\& permission -+\& size -+\& timeout -+\& timestamp } -+.Ve -+.PP -+This will enable all alerts for foo@bar, except the monit instance -+related alerts. -+.PP -+Event filtering can be used to send a mail to different email -+addresses depending on the events that occurred. For instance: -+.PP -+.Vb 3 -+\& alert foo@bar { nonexist, timeout, resource, icmp, connection } -+\& alert security@bar on { checksum, permission, uid, gid } -+\& alert manager@bar -+.Ve -+.PP -+This will send an alert message to foo@bar whenever a nonexist, -+timeout, resource or connection problem occurs and a message to -+security@bar if a checksum, permission, uid or gid problem -+occurs. And finally, a message to manager@bar whenever any error -+event occurs. -+.PP -+This is the list of events you can use in a mail\-filter: \fIuid, -+gid, size, nonexist, data, icmp, instance, invalid, exec, -+changed, timeout, resource, checksum, match, timestamp, -+connection, permission\fR -+.PP -+You can also disable the alerts localy using the \s-1NOALERT\s0 statement. -+This is useful for example when you have lot of services monitored, -+used the global alert statement, but don't want to receive alerts -+for some minor subset of services: -+.PP -+.Vb 1 -+\& noalert appadmin@bar -+.Ve -+.PP -+For example when you will place the noalert statement to the -+\&'check system', the given user won't receive the system related -+alerts (such as monit instance started/stopped/reloaded alert, -+system overloaded alert, etc.) but will receive the alerts for -+all other monitored services. -+.PP -+The following example will alert foo@bar on all events on all -+services by default, except the service mybar which will send an -+alert only on timeout. The trick is based on the fact that local -+definition of the same recipient overrides the global setting -+(including registered events and mail format): -+.PP -+.Vb 1 -+\& set alert foo@bar -+.Ve -+.PP -+.Vb 4 -+\& check process myfoo with pidfile /var/run/myfoo.pid -+\& ... -+\& check process mybar with pidfile /var/run/mybar.pid -+\& alert foo@bar only on { timeout } -+.Ve -+.PP -+The 'instance' alert type report events related to monit -+internals, such as when a monit instance was started, stopped or -+reloaded. -+.PP -+If the \s-1MTA\s0 (mailserver) for sending alerts is not available, -+monit \fIcan\fR queue events on the local file-system until the \s-1MTA\s0 -+recover. Monit will then post queued events in order with their -+original timestamp so the events are not lost. This feature is -+most useful if monit is used together with e.g. m/monit and when -+event history is important. -+.Sh "Alert message layout" -+.IX Subsection "Alert message layout" -+monit provides a default mail message layout that is short and to -+the point. Here's an example of a standard alert mail sent by -+monit: -+.PP -+.Vb 4 -+\& From: monit@tildeslash.com -+\& Subject: monit alert \-\- Does not exist apache -+\& To: hauk@tildeslash.com -+\& Date: Thu, 04 Sep 2003 02:33:03 +0200 -+.Ve -+.PP -+.Vb 1 -+\& Does not exist Service apache -+.Ve -+.PP -+.Vb 3 -+\& Date: Thu, 04 Sep 2003 02:33:03 +0200 -+\& Action: restart -+\& Host: www.tildeslash.com -+.Ve -+.PP -+.Vb 2 -+\& Your faithful employee, -+\& monit -+.Ve -+.PP -+If you want to, you can change the format of this message with -+the optional \fImail-format\fR statement. The syntax for this -+statement is as follows: -+.PP -+.Vb 7 -+\& mail\-format { -+\& from: monit@localhost -+\& subject: $SERVICE $EVENT at $DATE -+\& message: Monit $ACTION $SERVICE at $DATE on $HOST: $DESCRIPTION. -+\& Yours sincerely, -+\& monit -+\& } -+.Ve -+.PP -+Where the keyword \fIfrom:\fR is the email address monit should -+pretend it is sending from. It does not have to be a real mail -+address, but it must be a proper formated mail address, on the -+form: name@domain. The keyword \fIsubject:\fR is for the email -+subject line. The subject must be on only \fIone\fR line. The -+\&\fImessage:\fR keyword denotes the mail body. If used, this keyword -+should always be the last in a mail-format statement. The mail -+body can be as long as you want and must \fBnot\fR contain the '}' -+character. -+.PP -+All of these format keywords are optional but you must provide at -+least one. Thus if you only want to change the from address monit -+is using you can do: -+.PP -+.Vb 1 -+\& set alert foo@bar with mail\-format { from: bofh@bar.baz } -+.Ve -+.PP -+From the previous example you will notice that some special \f(CW$XXX\fR -+variables was used. If used, they will be substituted and -+expanded into the text with these values: -+.IP "* \fI$EVENT\fR" 4 -+.IX Item "$EVENT" -+.Vb 2 -+\& A string describing the event that occurred. The values are -+\& fixed and are: -+.Ve -+.Sp -+.Vb 19 -+\& Event: | Failure state: | Recovery state: -+\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- -+\& CHANGED | "Changed" | "Changed back" -+\& CHECKSUM | "Checksum failed" | "Checksum passed" -+\& CONNECTION| "Connection failed" | "Connection passed" -+\& DATA | "Data access error" | "Data access succeeded" -+\& EXEC | "Execution failed" | "Execution succeeded" -+\& GID | "GID failed" | "GID passed" -+\& ICMP | "ICMP failed" | "ICMP passed" -+\& INSTANCE | "Monit instance changed"| "Monit instance changed not" -+\& INVALID | "Invalid type" | "Type passed" -+\& MATCH | "Regex match" | "No regex match" -+\& NONEXIST | "Does not exist" | "Exists" -+\& PERMISSION| "Permission failed" | "Permission passed" -+\& RESOURCE | "Resource limit matched"| "Resource limit passed" -+\& SIZE | "Size failed" | "Size passed" -+\& TIMEOUT | "Timeout" | "Timeout recovery" -+\& TIMESTAMP | "Timestamp failed" | "Timestamp passed" -+\& UID | "UID failed" | "UID passed" -+.Ve -+.IP "* \fI$SERVICE\fR" 4 -+.IX Item "$SERVICE" -+.Vb 1 -+\& The service entry name in monitrc -+.Ve -+.IP "* \fI$DATE\fR" 4 -+.IX Item "$DATE" -+.Vb 1 -+\& The current time and date (RFC 822 date style). -+.Ve -+.IP "* \fI$HOST\fR" 4 -+.IX Item "$HOST" -+.Vb 1 -+\& The name of the host monit is running on -+.Ve -+.IP "* \fI$ACTION\fR" 4 -+.IX Item "$ACTION" -+.Vb 2 -+\& The name of the action which was done. Action names are fixed -+\& and are: -+.Ve -+.Sp -+.Vb 9 -+\& Action: | Name: -+\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- -+\& ALERT | "alert" -+\& EXEC | "exec" -+\& MONITOR | "monitor" -+\& RESTART | "restart" -+\& START | "start" -+\& STOP | "stop" -+\& UNMONITOR| "unmonitor" -+.Ve -+.IP "* \fI$DESCRIPTION\fR" 4 -+.IX Item "$DESCRIPTION" -+.Vb 1 -+\& The description of the error condition -+.Ve -+.Sh "Setting a global mail format" -+.IX Subsection "Setting a global mail format" -+It is possible to set a standard mail format with the -+following global set-statement (keywords are in capital): -+.IP "\s-1SET\s0 MAIL-FORMAT {mail\-format}" 4 -+.IX Item "SET MAIL-FORMAT {mail-format}" -+.PP -+Format set with this statement will apply to every alert -+statement that does \fInot\fR have its own specified mail\-format. -+This statement is most useful for setting a default from address -+for messages sent by monit, like so: -+.PP -+.Vb 1 -+\& set mail\-format { from: monit@foo.bar.no } -+.Ve -+.Sh "Setting a error reminder" -+.IX Subsection "Setting a error reminder" -+Monit by default sends just one error notification when the -+service failed and another one when it has recovered. If you want -+to be notified more then once in the case that the service -+remains failed, you can use the reminder option of alert -+statement (keywords are in capital): -+.IP "\s-1ALERT\s0 ... [\s-1WITH\s0] \s-1REMINDER\s0 [\s-1ON\s0] number [\s-1CYCLES\s0]" 4 -+.IX Item "ALERT ... [WITH] REMINDER [ON] number [CYCLES]" -+.PP -+For example if you want to be notified each tenth cycle when the -+service remains failed, you can use: -+.PP -+.Vb 1 -+\& alert foo@bar with reminder on 10 cycles -+.Ve -+.PP -+If you want to be notified on each failed cycle, you can use: -+.PP -+.Vb 1 -+\& alert foo@bar with reminder on 1 cycle -+.Ve -+.Sh "Setting a mail server for alert messages" -+.IX Subsection "Setting a mail server for alert messages" -+The mail server monit should use to send alert messages is -+defined with a global set statement (keywords are in capital and -+optional statements in [brackets]): -+.PP -+.Vb 2 -+\& SET MAILSERVER {host name [PORT port]|ip\-address [PORT port]}+ -+\& [with TIMEOUT X SECONDS] -+.Ve -+.PP -+The port statement allows to use \s-1SMTP\s0 servers other then those -+listening on port 25. If omitted, port 25 is used for the -+connection. -+.PP -+As you can see, it is possible to set several \s-1SMTP\s0 servers. If -+monit cannot connect to the first server in the list it will try -+the second server and so on. Monit has a default 5 seconds -+connection timeout and if the \s-1SMTP\s0 server is slow, monit could -+timeout when connecting or reading from the server. You can use -+the optional timeout statement to explicit set the timeout to a -+higher value if needed. Here is an example for setting several -+mail servers: -+.PP -+.Vb 2 -+\& set mailserver mail.tildeslash.com, mail.foo.bar port 10025, -+\& localhost with timeout 15 seconds -+.Ve -+.PP -+Here monit will first try to connect to the server -+\&\*(L"mail.tildeslash.com\*(R", if this server is down monit will try -+\&\*(L"mail.foo.bar\*(R" on port 10025 and finally \*(L"localhost\*(R". We do also -+set an explicit connect and read timeout; If monit cannot connect -+to the first \s-1SMTP\s0 server in the list within 15 seconds it will -+try the next server and so on. The \fIset mailserver ..\fR statement -+is optional and if not defined monit defaults to use localhost as -+the \s-1SMTP\s0 server. -+.Sh "Event queue" -+.IX Subsection "Event queue" -+Monit provide optionally queueing of event alerts that cannot be -+sent. For example, if no mail-server is available at the moment, -+monit can store events in a queue and try to reprocess them at -+the next cycle. As soon as the mail-server recover, monit will -+post the queued events. The queue is persistent across monit -+restarts and provided that the back-end filesystem is persistent -+too, across system restart as well. -+.PP -+By default, the queue is disabled and if the alert handler fails, -+monit will simply drop the alert message. To enable the event -+queue, add the following statement to the monit control file: -+.PP -+.Vb 1 -+\& SET EVENTQUEUE BASEDIR <path> [SLOTS <number>] -+.Ve -+.PP -+The <path> is the path to the directory where events will be -+stored. Optionally if you want to limit the queue size (maximum -+events count), use the slots option. If the slots option is not -+used, monit will store as many events as the backend filesystem -+allows. -+.PP -+Example: -+.PP -+.Vb 3 -+\& set eventqueue -+\& basedir /var/monit -+\& slots 5000 -+.Ve -+.PP -+The events are stored in binary format, one file per event. The -+file size is ca. 130 bytes or a bit more (depending on the -+message length). The file name is composed of the unix timestamp, -+underscore and the service name, for example: -+.PP -+.Vb 1 -+\& /var/monit/1131269471_apache -+.Ve -+.PP -+If you are running more then one monit instance on the same -+machine, you \fBmust\fR use separated event queue directories to -+avoid sending wrong alerts to the wrong addresses. -+.PP -+If you want to purge the queue by hand (remove queued -+event\-files), monit should be stopped before the removal. -+.SH "SERVICE TIMEOUT" -+.IX Header "SERVICE TIMEOUT" -+\&\fBmonit\fR provides a service timeout mechanism for situations -+where a service simply refuses to start or respond over a longer -+period. In cases like this, and particularly if monit's poll-cycle -+is low, monit will simply increase the machine load by trying to -+restart the service. -+.PP -+The timeout mechanism monit provides is based on two variables, -+i.e. the number the service has been started and the number of -+poll\-cycles. For example, if a service had \fIx\fR restarts within -+\&\fIy\fR poll-cycles (where \fIx\fR <= \fIy\fR) then monit will timeout and -+not (re)start the service on the next cycle. If a timeout occurs -+monit will send you an alert message if you have register -+interest for this event. -+.PP -+The syntax for the timeout statement is as follows (keywords -+are in capital): -+.IP "\s-1IF\s0 \s-1NUMBER\s0 \s-1RESTART\s0 \s-1NUMBER\s0 \s-1CYCLE\s0(S) \s-1THEN\s0 \s-1TIMEOUT\s0" 4 -+.IX Item "IF NUMBER RESTART NUMBER CYCLE(S) THEN TIMEOUT" -+.PP -+Where the first number is the number of service restarts and the -+second, the number of poll\-cycles. If the number of cycles was -+reached without a timeout, the service start-counter is reset to -+zero. This provides some granularity to catch exceptional cases -+and do a service timeout, but let occasional service start and -+restarts happen without having an accumulated timeout. -+.PP -+Here is an example where monit will timeout (not check the -+service) if the service was restarted 2 times within 3 cycles: -+.PP -+.Vb 1 -+\& if 2 restarts within 3 cycles then timeout -+.Ve -+.PP -+To have monit check the service again after a timeout, run 'monit -+monitor service' from the command line. This will remove the -+timeout lock in the daemon and make the daemon start and check -+the service again. -+.SH "SERVICE TESTS" -+.IX Header "SERVICE TESTS" -+Monit provides several tests you may utilize in a service entry -+to test a service. Basically here are two classes of tests: -+variable and constant object tests. -+.PP -+Constant object tests are related to failed/passed state. In the -+case of error, monit will watch whether the failed parameter will -+recover \- in such case it will handle recovery related -+action. General format: -+.IP "\s-1IF\s0 <\s-1TEST\s0> [[<X>] [\s-1TIMES\s0 \s-1WITHIN\s0] <Y> \s-1CYCLES\s0] \s-1THEN\s0 \s-1ACTION\s0 [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] [\s-1TIMES\s0 \s-1WITHIN\s0] <Y> \s-1CYCLES\s0] \s-1THEN\s0 \s-1ACTION\s0]" 4 -+.IX Item "IF <TEST> [[<X>] [TIMES WITHIN] <Y> CYCLES] THEN ACTION [ELSE IF PASSED [[<X>] [TIMES WITHIN] <Y> CYCLES] THEN ACTION]" -+.PP -+For constant object tests if the <\s-1TEST\s0> should validate to true, -+then the selected action is executed each cycle the condition -+remains true. The value for comparison is constant. Recovery -+action is evaluated only once (on failed\->passed state change -+only). The '\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0' part is optional \- if omitted, -+monit will do alert action on recovery by default. The alert is -+delivered only once on each state change unless overridden by -+\&'reminder' alert option. -+.PP -+Variable object tests begins with '\s-1IF\s0 \s-1CHANGED\s0' statement and -+serves for monitoring of object, which property can change legally -+\&\- monit watches whether the value will change again. You can use -+it just for alert or to involve some automatic action, as for -+example to reload monitored process after its configuration file -+was changed. Variable tests are supported for 'checksum', -+\&'size', 'pid, 'ppid' and 'timestamp' tests only, if you consider -+that other tests can be useful in variable form too, please let -+us know. -+.IP "\s-1IF\s0 \s-1CHANGED\s0 <\s-1TEST\s0> [[<X>] [\s-1TIMES\s0 \s-1WITHIN\s0] <Y> \s-1CYCLES\s0] \s-1THEN\s0 \s-1ACTION\s0" 4 -+.IX Item "IF CHANGED <TEST> [[<X>] [TIMES WITHIN] <Y> CYCLES] THEN ACTION" -+.PP -+For variable object tests if the <\s-1TEST\s0> should validate to true, -+then the selected action is executed once and monit will watch -+for another change. The value for comparison is a variable where -+the last result becomes the actual value, which is compared in -+future cycles. The alert is delivered each time the condition -+becomes true. -+.PP -+You can restrict the event ratio needed to change the state: -+.IP "... [[<X>] [\s-1TIMES\s0 \s-1WITHIN\s0] <Y> \s-1CYCLES\s0] ..." 4 -+.IX Item "... [[<X>] [TIMES WITHIN] <Y> CYCLES] ..." -+.PP -+This part is optional and is supported by all testing rules. -+It defines how many event occurrences during how many cycles -+are needed to trigger the following action. You can use it -+in several ways \- the core syntax is: -+.PP -+.Vb 1 -+\& [<X>] <Y> CYCLES -+.Ve -+.PP -+It is possible to use filling words which give the rule better -+first-sight sense. You can use any filling words such as: \s-1FOR\s0, -+\&\s-1TIMES\s0, \s-1WITHIN\s0, thus for example: -+.PP -+.Vb 1 -+\& if failed port 80 for 3 times within 5 cycles then alert -+.Ve -+.PP -+or -+.PP -+.Vb 1 -+\& if failed port 80 for 10 cycles then unmonitor -+.Ve -+.PP -+When you don't specify the <X>, it equals to <Y> by default, -+thus the rule applies when <Y> consecutive cycles of inverse -+event occurred (relatively to the current service state). -+.PP -+When you omit it at all, monit will by default change state -+on first inverse event, which is equivalent to this notation: -+.PP -+.Vb 1 -+\& 1 times within 1 cycles -+.Ve -+.PP -+It is possible to use this option for failed, passed/recovered -+or changed rules. More complex examples: -+.PP -+.Vb 7 -+\& check device rootfs with path /dev/hda1 -+\& if space usage > 80% 5 times within 15 cycles -+\& then alert -+\& else if passed for 10 cycles then alert -+\& if space usage > 90% for 5 cycles then -+\& exec '/try/to/free/the/space' -+\& if space usage > 99% then exec '/stop/processess' -+.Ve -+.PP -+Note that the maximal cycles count which can be used in the rule -+is limited by the size of 'long long' data type on your platform. -+This provides 64 cycles on usual platforms currently. In the case -+that you use unsupported value, the configuration parser will -+tell you the limits during monit startup. -+.PP -+You must select an action to be executed from this list: -+.IP "\(bu" 4 -+\&\fB\s-1ALERT\s0\fR sends the user an alert event on each state change (for -+constant object tests) or on each change (for variable object -+tests). -+.IP "\(bu" 4 -+\&\fB\s-1RESTART\s0\fR restarts the service \fIand\fR sends an alert. Restart is -+conducted by first calling the service's registered stop method -+and then the service's start method. -+.IP "\(bu" 4 -+\&\fB\s-1START\s0\fR starts the service by calling the service's registered -+start method \fIand\fR send an alert. -+.IP "\(bu" 4 -+\&\fB\s-1STOP\s0\fR stops the service by calling the service's registered -+stop method \fIand\fR send an alert. If monit stops a service it -+will not be checked by monit anymore nor restarted again -+later. To reactivate monitoring of the service again you must -+explicitly enable monitoring from the web interface or from the -+console, e.g. 'monit monitor apache'. -+.IP "\(bu" 4 -+\&\fB\s-1EXEC\s0\fR may be used to execute an arbitrary program \fIand\fR send -+an alert. If you choose this action you must state the program to -+be executed and if the program require arguments you must enclose -+the program and its arguments in a quoted string. You may -+optionally specify the uid and gid the executed program should -+switch to upon start. For instance: -+.Sp -+.Vb 2 -+\& exec "/usr/local/tomcat/bin/startup.sh" -+\& as uid nobody and gid nobody -+.Ve -+.Sp -+This may be useful if the program to be started cannot change to -+a lesser privileged user and group. This is typically needed for -+Java Servers. Remember, if monit is run by the superuser, then -+all programs executed by monit will be started with superuser -+privileges unless the uid and gid extension was used. -+.IP "\(bu" 4 -+\&\fB\s-1MONITOR\s0\fR will enable monitoring of the service \fIand\fR send -+an alert. -+.IP "\(bu" 4 -+\&\fB\s-1UNMONITOR\s0\fR will disable monitoring of the service \fIand\fR send -+an alert. The service will not be checked by monit anymore nor -+restarted again later. To reactivate monitoring of the service -+you must explicitly enable monitoring from monit's web interface -+or from the console using the monitor argument. -+.Sh "\s-1RESOURCE\s0 \s-1TESTING\s0" -+.IX Subsection "RESOURCE TESTING" -+Monit can examine how much system resources a services are -+using. This test may only be used within a system or process -+service entry in the monit control file. -+.PP -+Depending on the system or process characteristics, services -+can be stopped or restarted and alerts can be generated. Thus -+it is possible to utilize systems which are idle and to spare -+system under high load. -+.PP -+The full syntax for the resource-statements used for resource -+testing is as follows (keywords are in capital and optional -+statements in [brackets]), -+.IP "\s-1IF\s0 resource operator value [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF resource operator value [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIresource\fR is a choice of \*(L"\s-1CPU\s0\*(R", \*(L"\s-1CPU\s0([user|system|wait])\*(R", -+\&\*(L"\s-1MEMORY\s0\*(R", \*(L"\s-1CHILDREN\s0\*(R", \*(L"\s-1TOTALMEMORY\s0\*(R", \*(L"\s-1LOADAVG\s0([1min|5min|15min])\*(R". -+Some resources can be used inside of system service container, -+some in process service container and some in both: -+.PP -+System only resource tests: -+.PP -+\&\s-1CPU\s0([user|system|wait]) is the percent of time that the system -+spend in user or system/kernel space. Some systems such as linux -+2.6 supports 'wait' indicator as well. -+.PP -+Process only resource tests: -+.PP -+\&\s-1CPU\s0 is the \s-1CPU\s0 usage of the process and its children in -+parts of hundred (percent). -+.PP -+\&\s-1CHILDREN\s0 is the number of child processes of the process. -+.PP -+\&\s-1TOTALMEMORY\s0 is the memory usage of the process and its child -+processes in either percent or as an amount (Byte, kB, \s-1MB\s0, \s-1GB\s0). -+.PP -+System and process resource tests: -+.PP -+\&\s-1MEMORY\s0 is the memory usage of the system or in the process context -+of the process without its child processes in either percent -+(of the systems total) or as an amount (Byte, kB, \s-1MB\s0, \s-1GB\s0). -+.PP -+\&\s-1LOADAVG\s0([1min|5min|15min]) refers to the system's load average. -+The load average is the number of processes in the system run -+queue, averaged over the specified time period. -+.PP -+\&\fIoperator\fR is a choice of \*(L"<\*(R", \*(L">\*(R", \*(L"!=\*(R", \*(L"==\*(R" in C notation, -+\&\*(L"gt\*(R", \*(L"lt\*(R", \*(L"eq\*(R", \*(L"ne\*(R" in shell sh notation and \*(L"greater\*(R", -+\&\*(L"less\*(R", \*(L"equal\*(R", \*(L"notequal\*(R" in human readable form (if not -+specified, default is \s-1EQUAL\s0). -+.PP -+\&\fIvalue\fR is either an integer or a real number (except for -+\&\s-1CHILDREN\s0). For \s-1CPU\s0, \s-1MEMORY\s0 and \s-1TOTALMEMORY\s0 you need to specify a -+\&\fIunit\fR. This could be \*(L"%\*(R" or if applicable \*(L"B\*(R" (Byte), \*(L"kB\*(R" -+(1024 Byte), \*(L"\s-1MB\s0\*(R" (1024 KiloByte) or \*(L"\s-1GB\s0\*(R" (1024 MegaByte). -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+To calculate the cycles, a counter is raised whenever the -+expression above is true and it is lowered whenever it is false -+(but not below 0). All counters are reset in case of a restart. -+.PP -+The following is an example to check that the \s-1CPU\s0 usage of a -+service is not going beyond 50% during five poll cycles. If it -+does, monit will restart the service: -+.PP -+.Vb 1 -+\& if cpu is greater than 50% for 5 cycles then restart -+.Ve -+.PP -+See also the example section below. -+.Sh "\s-1FILE\s0 \s-1CHECKSUM\s0 \s-1TESTING\s0" -+.IX Subsection "FILE CHECKSUM TESTING" -+The checksum statement may only be used in a file service -+entry. If specified in the control file, monit will compute -+a md5 or sha1 checksum for a file. -+.PP -+The checksum test in constant form is used to verify that a -+file does not change. Syntax (keywords are in capital): -+.IP "\s-1IF\s0 \s-1FAILED\s0 [MD5|SHA1] \s-1CHECKSUM\s0 [\s-1EXPECT\s0 checksum] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED [MD5|SHA1] CHECKSUM [EXPECT checksum] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+The checksum test in variable form is used to watch for -+file changes. Syntax (keywords are in capital): -+.IP "\s-1IF\s0 \s-1CHANGED\s0 [MD5|SHA1] \s-1CHECKSUM\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED [MD5|SHA1] CHECKSUM [[<X>] <Y> CYCLES] THEN action" -+.PP -+The choice of \s-1MD5\s0 or \s-1SHA1\s0 is optional. \s-1MD5\s0 features a 256 bit -+and \s-1SHA1\s0 a 320 bit checksum. If this option is omitted monit -+tries to guess the method from the \s-1EXPECT\s0 string or uses \s-1MD5\s0 as -+default. -+.PP -+\&\fIexpect\fR is optional and if used it specifies a md5 or sha1 -+string monit should expect when testing a file's checksum. If -+\&\fIexpect\fR is used, monit will not compute an initial checksum for -+the file, but instead use the string you submit. For example: -+.PP -+.Vb 3 -+\& if failed checksum and -+\& expect the sum 8f7f419955cefa0b33a2ba316cba3659 -+\& then alert -+.Ve -+.PP -+You can, for example, use the \s-1GNU\s0 utility \fI\fImd5sum\fI\|(1)\fR or -+\&\fI\fIsha1sum\fI\|(1)\fR to create a checksum string for a file and -+use this string in the expect\-statement. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The checksum statement in variable form may be used to check a -+file for changes and if changed, do a specified action. For -+instance to reload a server if its configuration file was -+changed. The following illustrate this for the apache web server: -+.PP -+.Vb 3 -+\& check file httpd.conf path /usr/local/apache/conf/httpd.conf -+\& if changed sha1 checksum -+\& then exec "/usr/local/apache/bin/apachectl graceful" -+.Ve -+.PP -+If you plan to use the checksum statement for security reasons, -+(a very good idea, by the way) and to monitor a file or files -+which should not change, then please use constant form and also -+read the \s-1DEPENDENCY\s0 \s-1TREE\s0 section below to see a detailed example -+on how to do this properly. -+.PP -+Monit can also test the checksum for files on a remote host via -+the \s-1HTTP\s0 protocol. See the \s-1CONNECTION\s0 \s-1TESTING\s0 section below. -+.Sh "\s-1TIMESTAMP\s0 \s-1TESTING\s0" -+.IX Subsection "TIMESTAMP TESTING" -+The timestamp statement may only be used in a file, fifo or directory -+service entry. -+.PP -+The timestamp test in constant form is used to verify various -+timestamp conditions. Syntax (keywords are in capital): -+.IP "\s-1IF\s0 \s-1TIMESTAMP\s0 [[operator] value [unit]] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF TIMESTAMP [[operator] value [unit]] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+The timestamp statement in variable form is simply to test an -+existing file or directory for timestamp changes and if changed, -+execute an action. Syntax (keywords are in capital): -+.IP "\s-1IF\s0 \s-1CHANGED\s0 \s-1TIMESTAMP\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED TIMESTAMP [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIoperator\fR is a choice of \*(L"<\*(R", \*(L">\*(R", \*(L"!=\*(R", \*(L"==\*(R" in C notation, -+\&\*(L"\s-1GT\s0\*(R", \*(L"\s-1LT\s0\*(R", \*(L"\s-1EQ\s0\*(R", \*(L"\s-1NE\s0\*(R" in shell sh notation and \*(L"\s-1GREATER\s0\*(R", -+\&\*(L"\s-1LESS\s0\*(R", \*(L"\s-1EQUAL\s0\*(R", \*(L"\s-1NOTEQUAL\s0\*(R" in human readable form (if not -+specified, default is \s-1EQUAL\s0). -+.PP -+\&\fIvalue\fR is a time watermark. -+.PP -+\&\fIunit\fR is either \*(L"\s-1SECOND\s0\*(R", \*(L"\s-1MINUTE\s0\*(R", \*(L"\s-1HOUR\s0\*(R" or \*(L"\s-1DAY\s0\*(R" (it is also -+possible to use \*(L"\s-1SECONDS\s0\*(R", \*(L"\s-1MINUTES\s0\*(R", \*(L"\s-1HOURS\s0\*(R", or \*(L"\s-1DAYS\s0\*(R"). -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The variable timestamp statement is useful for checking a file -+for changes and then execute an action. This version was written -+particularly with configuration files in mind. For instance, if -+you monitor the apache web server you can use this statement to -+reload apache if the \fIhttpd.conf\fR (apache's configuration file) -+was changed. Like so: -+.PP -+.Vb 3 -+\& check file httpd.conf with path /usr/local/apache/conf/httpd.conf -+\& if changed timestamp -+\& then exec "/usr/local/apache/bin/apachectl graceful" -+.Ve -+.PP -+The constant timestamp version is useful for monitoring systems -+able to report its state by changing the timestamp of certain -+state files. For instance the \fIiPlanet Messaging server stored -+process\fR system updates the timestamp of: -+.PP -+.Vb 3 -+\& o stored.ckp -+\& o stored.lcu -+\& o stored.per -+.Ve -+.PP -+If a task should fail, the system keeps the timestamp. To report -+stored problems you can use the following statements: -+.PP -+.Vb 2 -+\& check file stored.ckp with path /msg\-foo/config/stored.ckp -+\& if timestamp > 1 minute then alert -+.Ve -+.PP -+.Vb 2 -+\& check file stored.lcu with path /msg\-foo/config/stored.lcu -+\& if timestamp > 5 minutes then alert -+.Ve -+.PP -+.Vb 2 -+\& check file stored.per with path /msg\-foo/config/stored.per -+\& if timestamp > 1 hour then alert -+.Ve -+.PP -+As mentioned above, you can also use the timestamp statement for -+monitoring directories for changes. If files are added or removed -+from a directory, its timestamp is changed: -+.PP -+.Vb 2 -+\& check directory mydir path /foo/directory -+\& if timestamp > 1 hour then alert -+.Ve -+.PP -+or -+.PP -+.Vb 2 -+\& check directory myotherdir path /foo/secure/directory -+\& if timestamp < 1 hour then alert -+.Ve -+.PP -+The following example is a hack for restarting a process after a -+certain time. Sometimes this is a necessary workaround for some -+third-party applications, until the vendor fix a problem: -+.PP -+.Vb 3 -+\& check file server.pid path /var/run/server.pid -+\& if timestamp > 7 days -+\& then exec "/usr/local/server/restart\-server" -+.Ve -+.Sh "\s-1FILE\s0 \s-1SIZE\s0 \s-1TESTING\s0" -+.IX Subsection "FILE SIZE TESTING" -+The size statement may only be used in a file service entry. -+If specified in the control file, monit will compute a size -+for a file. -+.PP -+The size test in constant form is used to verify various -+size conditions. Syntax (keywords are in capital): -+.IP "\s-1IF\s0 \s-1SIZE\s0 [[operator] value [unit]] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF SIZE [[operator] value [unit]] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+The size statement in variable form is simply to test an existing -+file for size changes and if changed, execute an action. Syntax -+(keywords are in capital): -+.IP "\s-1IF\s0 \s-1CHANGED\s0 \s-1SIZE\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED SIZE [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIoperator\fR is a choice of \*(L"<\*(R", \*(L">\*(R", \*(L"!=\*(R", \*(L"==\*(R" in C notation, -+\&\*(L"\s-1GT\s0\*(R", \*(L"\s-1LT\s0\*(R", \*(L"\s-1EQ\s0\*(R", \*(L"\s-1NE\s0\*(R" in shell sh notation and \*(L"\s-1GREATER\s0\*(R", -+\&\*(L"\s-1LESS\s0\*(R", \*(L"\s-1EQUAL\s0\*(R", \*(L"\s-1NOTEQUAL\s0\*(R" in human readable form (if not -+specified, default is \s-1EQUAL\s0). -+.PP -+\&\fIvalue\fR is a size watermark. -+.PP -+\&\fIunit\fR is a choice of \*(L"B\*(R",\*(L"\s-1KB\s0\*(R",\*(L"\s-1MB\s0\*(R",\*(L"\s-1GB\s0\*(R" or long alternatives -+\&\*(L"byte\*(R", \*(L"kilobyte\*(R", \*(L"megabyte\*(R", \*(L"gigabyte\*(R". If it is not -+specified, \*(L"byte\*(R" unit is assumed by default. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The variable size test form is useful for checking a file for -+changes and send an alert or execute an action. Monit will -+register the size of the file at startup and monitor the file for -+changes. As soon as the value changed, monit will do specified -+action, reset the registered value to new result and continue to -+monitor, whether the size changed again. -+.PP -+One example of use for this statement is to conduct security -+checks, for instance: -+.PP -+.Vb 2 -+\& check file su with path /bin/su -+\& if changed size then exec "/sbin/ifconfig eth0 down" -+.Ve -+.PP -+which will \*(L"cut the cable\*(R" and stop a possible intruder from -+compromising the system further. This test is just one of many -+you may use to increase the security awareness on a system. If -+you plan to use monit for security reasons we recommend that you -+use this test in combination with other supported tests like -+checksum, timestamp, and so on. -+.PP -+The constant size test form may be useful in similar or different -+contexts. It can, for instance, be used to test if a certain file -+size was exceeded and then alert you or monit may execute a -+certain action specified by you. An example is to use this -+statement to rotate log files after they have reached a certain -+size or to check that a database file does not grow beyond a -+specified threshold. -+.PP -+To rotate a log file: -+.PP -+.Vb 3 -+\& check file myapp.log with path /var/log/myapp.log -+\& if size > 50 MB then -+\& exec "/usr/local/bin/rotate /var/log/myapp.log myapp" -+.Ve -+.PP -+where /usr/local/bin/rotate may be a simple script, such as: -+.PP -+.Vb 3 -+\& #/bin/bash -+\& /bin/mv $1 $1.`date +%y\-%m\-%d` -+\& /usr/bin/pkill \-HUP $2 -+.Ve -+.PP -+Or you may use this statement to trigger the \fIlogrotate\fR\|(8) -+program, to do an \*(L"emergency\*(R" rotate. Or to send an alert if a -+file becomes a known bottleneck if it grows behind a certain size -+because of limits in a database engine: -+.PP -+.Vb 2 -+\& check file mydb with path /data/mydatabase.db -+\& if size > 1 GB then alert -+.Ve -+.PP -+This is a more restrictive form of the first example where the -+size is explicitly defined (note that the real su size is system -+dependent): -+.PP -+.Vb 2 -+\& check file su with path /bin/su -+\& if size != 95564 then exec "/sbin/ifconfig eth0 down" -+.Ve -+.Sh "\s-1FILE\s0 \s-1CONTENT\s0 \s-1TESTING\s0" -+.IX Subsection "FILE CONTENT TESTING" -+The match statement allows you to test the content of a text -+file by using regular expressions. This is a great feature if -+you need to periodically test files, such as log files, for -+certain patterns. If a pattern match, monit defaults to -+raise an alert, other actions are also possible. -+.PP -+The syntax (keywords in capital) for using this function is: -+.IP "\s-1IF\s0 [\s-1NOT\s0] \s-1MATCH\s0 {regex|path} [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF [NOT] MATCH {regex|path} [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIregex\fR is a string containing the extended regular expression. -+See also \fIregex\fR\|(7). -+.PP -+\&\fIpath\fR is an absolute path to a file containing extended -+regular expression on every line. See also \fIregex\fR\|(7). -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+You can use the \fI\s-1NOT\s0\fR statement to invert a match. -+.PP -+The content is only being checked every cycle. If content is -+being added and removed between two checks they are unnoticed. -+.PP -+On startup the read position is set to the end of the file -+and monit continue to scan to the end of file on each cycle. -+But if the file size should decrease or inode change the read -+position is set to the start of the file. -+.PP -+Only lines ending with a newline character are inspected. Thus, -+lines are being ignored until they have been completed with this -+character. Also note that only the first 511 characters of a -+line are inspected. -+.IP "\s-1IGNORE\s0 [\s-1NOT\s0] \s-1MATCH\s0 {regex|path}" 4 -+.IX Item "IGNORE [NOT] MATCH {regex|path}" -+.PP -+Lines matching an \fI\s-1IGNORE\s0\fR are not inspected during later -+evaluations. \fI\s-1IGNORE\s0 \s-1MATCH\s0\fR has always precedence over -+\&\fI\s-1IF\s0 \s-1MATCH\s0\fR. -+.PP -+All \fI\s-1IGNORE\s0 \s-1MATCH\s0\fR statements are evaluated first, in the -+order of their appearance. Thereafter, all the \fI\s-1IF\s0 \s-1MATCH\s0\fR -+statements are evaluated. -+.PP -+A real life example might look like this: -+.PP -+.Vb 7 -+\& check file syslog with path /var/log/syslog -+\& ignore match -+\& "^\ew{3} [ :0\-9]{11} [._[:alnum:]\-]+ monit\e[[0\-9]+\e]:" -+\& ignore match /etc/monit/ignore.regex -+\& if match -+\& "^\ew{3} [ :0\-9]{11} [._[:alnum:]\-]+ mrcoffee\e[[0\-9]+\e]:" -+\& if match /etc/monit/active.regex then alert -+.Ve -+.Sh "\s-1FILESYSTEM\s0 \s-1FLAGS\s0 \s-1TESTING\s0" -+.IX Subsection "FILESYSTEM FLAGS TESTING" -+monit tests the filesystem flags of devices for change. This -+test is implicit and monit will send alert in the case of -+failure by default. -+.PP -+You may override the default action using below rule (it may only -+be used within a device service entry in the monit control file). -+.PP -+This test is useful for detecting changes of the filesystem flags -+such as when the filesystem became read-only based on disk errors -+or the mount flags were changed (such as nosuid). Each platform -+provides different flags set. \s-1POSIX\s0 defined the \s-1RDONLY\s0 and \s-1NOSUID\s0 -+flags which should work on all platforms. Some platforms (such as -+FreeBSD) present another flags in addition. -+.PP -+The syntax for the fsflags statement is: -+.IP "\s-1IF\s0 \s-1CHANGED\s0 \s-1FSFLAGS\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED FSFLAGS [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+Example: -+.PP -+.Vb 3 -+\& check device rootfs with path / -+\& if changed fsflags then exec "/my/script" -+\& alert root@localhost -+.Ve -+.Sh "\s-1SPACE\s0 \s-1TESTING\s0" -+.IX Subsection "SPACE TESTING" -+Monit can test devices/file systems and check for space -+usage. This test may only be used within a device service entry -+in the monit control file. -+.PP -+Monit will check a device's total space usage. If you only want -+to check available space for non\-superuser, you must set the -+watermark appropriately (i.e. total space minus reserved blocks -+for the superuser). -+.PP -+You can obtain (and set) the superuser's reserved blocks size, -+for example by using the tune2fs utility on Linux. On Linux 5% of -+available blocks are reserved for the superuser by default. To -+list the reserved blocks for the superuser: -+.PP -+.Vb 4 -+\& [root@berry monit]# tune2fs \-l /dev/hda1| grep "Reserved block" -+\& Reserved block count: 319994 -+\& Reserved blocks uid: 0 (user root) -+\& Reserved blocks gid: 0 (group root) -+.Ve -+.PP -+On solaris 10% of the blocks are reserved. You can also use -+tunefs on solaris to change values on a live filesystem. -+.PP -+The full syntax for the space statement is: -+.IP "\s-1IF\s0 \s-1SPACE\s0 operator value unit [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF SPACE operator value unit [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIoperator\fR is a choice of \*(L"<\*(R",\*(L">\*(R",\*(L"!=\*(R",\*(L"==\*(R" in c notation, \*(L"gt\*(R", -+\&\*(L"lt\*(R", \*(L"eq\*(R", \*(L"ne\*(R" in shell sh notation and \*(L"greater\*(R", \*(L"less\*(R", -+\&\*(L"equal\*(R", \*(L"notequal\*(R" in human readable form (if not specified, -+default is \s-1EQUAL\s0). -+.PP -+\&\fIunit\fR is a choice of \*(L"B\*(R",\*(L"\s-1KB\s0\*(R",\*(L"\s-1MB\s0\*(R",\*(L"\s-1GB\s0\*(R", \*(L"%\*(R" or long -+alternatives \*(L"byte\*(R", \*(L"kilobyte\*(R", \*(L"megabyte\*(R", \*(L"gigabyte\*(R", -+\&\*(L"percent\*(R". -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.Sh "\s-1INODE\s0 \s-1TESTING\s0" -+.IX Subsection "INODE TESTING" -+If supported by the file\-system, you can use monit to test for -+inodes usage. This test may only be used within a device service -+entry in the monit control file. -+.PP -+If the device becomes unavailable, monit will call the entry's -+registered start method, if it is defined and if monit is running -+in active mode. If monit runs in passive mode or the start -+methods is not defined, monit will just send an error alert. -+.PP -+The syntax for the inode statement is: -+.IP "\s-1IF\s0 \s-1INODE\s0(S) operator value [unit] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF INODE(S) operator value [unit] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIoperator\fR is a choice of \*(L"<\*(R",\*(L">\*(R",\*(L"!=\*(R",\*(L"==\*(R" in c notation, \*(L"gt\*(R", -+\&\*(L"lt\*(R", \*(L"eq\*(R", \*(L"ne\*(R" in shell sh notation and \*(L"greater\*(R", \*(L"less\*(R", -+\&\*(L"equal\*(R", \*(L"notequal\*(R" in human readable form (if not specified, -+default is \s-1EQUAL\s0). -+.PP -+\&\fIunit\fR is optional. If not specified, the value is an absolute -+count of inodes. You can use the \*(L"%\*(R" character or the longer -+alternative \*(L"percent\*(R" as a unit. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.Sh "\s-1PERMISSION\s0 \s-1TESTING\s0" -+.IX Subsection "PERMISSION TESTING" -+Monit can monitor the permissions. This test may only be used -+within a file, fifo, directory or device service entry in the -+monit control file. -+.PP -+The syntax for the permission statement is: -+.IP "\s-1IF\s0 \s-1FAILED\s0 \s-1PERM\s0(\s-1ISSION\s0) octalnumber [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED PERM(ISSION) octalnumber [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIoctalnumber\fR defines permissions for a file, a directory or a -+device. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The web interface will show a permission warning if the test -+failed. -+.PP -+We recommend that you use the \s-1UNMONITOR\s0 action in a permission -+statement. The rationale for this feature is security and that -+monit does not start a possible cracked program or -+script. Example: -+.PP -+.Vb 3 -+\& check file monit.bin with path "/usr/local/bin/monit" -+\& if failed permission 0555 then unmonitor -+\& alert foo@bar -+.Ve -+.PP -+If the test fails, monit will simply send an alert and stop -+monitoring the file and propagate an unmonitor action upward in -+a depend tree. -+.Sh "\s-1UID\s0 \s-1TESTING\s0" -+.IX Subsection "UID TESTING" -+monit can monitor the owner user id (uid). This test may only be -+used within a file, fifo, directory or device service entry in -+the monit control file. -+.PP -+The syntax for the uid statement is: -+.IP "\s-1IF\s0 \s-1FAILED\s0 \s-1UID\s0 user [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED UID user [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIuser\fR defines a user id either in numeric or in string form. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The web interface will show a uid warning if the test should -+fail. -+.PP -+We recommend that you use the \s-1UNMONITOR\s0 action in a uid -+statement. The rationale for this feature is security and that -+monit does not start a possible cracked program or -+script. Example: -+.PP -+.Vb 3 -+\& check file passwd with path /etc/passwd -+\& if failed uid root then unmonitor -+\& alert root@localhost -+.Ve -+.PP -+If the test fails, monit will simply send an alert and stop -+monitoring the file and propagate an unmonitor action upward in -+a depend tree. -+.Sh "\s-1GID\s0 \s-1TESTING\s0" -+.IX Subsection "GID TESTING" -+monit can monitor the owner group id (gid). This test may only -+be used within a file, fifo, directory or device service entry -+in the monit control file. -+.PP -+The syntax for the gid statement is: -+.IP "\s-1IF\s0 \s-1FAILED\s0 \s-1GID\s0 user [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED GID user [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fIuser\fR defines a group id either in numeric or in string form. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+The web interface will show a gid warning if the test should -+fail. -+.PP -+We recommend that you use the \s-1UNMONITOR\s0 action in a gid -+statement. The rationale for this feature is security and that -+monit does not start a possible cracked program or -+script. Example: -+.PP -+.Vb 3 -+\& check file shadow with path /etc/shadow -+\& if failed gid root then unmonitor -+\& alert root@localhost -+.Ve -+.PP -+If the test fails, monit will simply send an alert and stop -+monitoring the file and propagate an unmonitor action upward in -+a depend tree. -+.Sh "\s-1PID\s0 \s-1TESTING\s0" -+.IX Subsection "PID TESTING" -+monit tests the process id (pid) of processes for change. This -+test is implicit and monit will send alert in the case of failure -+by default. -+.PP -+You may override the default action using below rule (it may only -+be used within a process service entry in the monit control -+file). -+.PP -+The syntax for the pid statement is: -+.IP "\s-1IF\s0 \s-1CHANGED\s0 \s-1PID\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED PID [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+This test is useful to detect possible process restarts which -+has occurred in the timeframe between two monit testing cycles. -+In the case that the restart was fast and the process provides -+expected service (i.e. all tests passed) you will be notified -+that the process was replaced. -+.PP -+For example sshd daemon can restart very quickly, thus if someone -+changes its configuration and do sshd restart outside of monit -+control, you will be notified that the process was replaced by -+new instance (or you can optionaly do some other action such as -+preventively stop sshd). -+.PP -+Another example is MySQL Cluster which has its own watchdog with -+process restart ability. You can use monit for redundant -+monitoring. Monit will just send alert in the case that the MySQL -+cluster restarted the node quickly. -+.PP -+Example: -+.PP -+.Vb 3 -+\& check process sshd with pidfile /var/run/sshd.pid -+\& if changed pid then exec "/my/script" -+\& alert root@localhost -+.Ve -+.Sh "\s-1PPID\s0 \s-1TESTING\s0" -+.IX Subsection "PPID TESTING" -+monit tests the process parent id (ppid) of processes for change. -+This test is implicit and monit will send alert in the case of -+failure by default. -+.PP -+You may override the default action using below rule (it may only -+be used within a process service entry in the monit control file). -+.PP -+The syntax for the ppid statement is: -+.IP "\s-1IF\s0 \s-1CHANGED\s0 \s-1PPID\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action" 4 -+.IX Item "IF CHANGED PPID [[<X>] <Y> CYCLES] THEN action" -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+This test is useful for detecting changes of a process parent. -+.PP -+Example: -+.PP -+.Vb 3 -+\& check process myproc with pidfile /var/run/myproc.pid -+\& if changed ppid then exec "/my/script" -+\& alert root@localhost -+.Ve -+.Sh "\s-1CONNECTION\s0 \s-1TESTING\s0" -+.IX Subsection "CONNECTION TESTING" -+Monit is able to perform connection testing via networked ports -+or via Unix sockets. A connection test may only be used within a -+process or within a host service entry in the monit control file. -+.PP -+If a service listens on one or more sockets, monit can connect to -+the port (using either tcp or udp) and verify that the service -+will accept a connection and that it is possible to write and -+read from the socket. If a connection is not accepted or if there -+is a problem with socket read/write, monit will assume that -+something is wrong and execute a specified action. If monit is -+compiled with openssl, then ssl based network services can also -+be tested. -+.PP -+The full syntax for the statement used for connection testing is -+as follows (keywords are in capital and optional statements in -+[brackets]), -+.IP "\s-1IF\s0 \s-1FAILED\s0 [host] port [type] [protocol|{send/expect}+] [timeout] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED [host] port [type] [protocol|{send/expect}+] [timeout] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+or for Unix sockets, -+.IP "\s-1IF\s0 \s-1FAILED\s0 [unixsocket] [type] [protocol|{send/expect}+] [timeout] [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action [\s-1ELSE\s0 \s-1IF\s0 \s-1PASSED\s0 [[<X>] <Y> \s-1CYCLES\s0] \s-1THEN\s0 action]" 4 -+.IX Item "IF FAILED [unixsocket] [type] [protocol|{send/expect}+] [timeout] [[<X>] <Y> CYCLES] THEN action [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action]" -+.PP -+\&\fBhost:HOST hostname\fR. Optionally specify the host to connect to. -+If the host is not given then localhost is assumed if this test -+is used inside a process entry. If this test was used inside a -+remote host entry then the entry's remote host is assumed. -+Although \fIhost\fR is intended for testing name based virtual host -+in a \s-1HTTP\s0 server running on local or remote host, it does allow -+the connection statement to be used to test a server running on -+another machine. This may be useful; For instance if you use -+Apache httpd as a front-end and an application-server as the -+back-end running on another machine, this statement may be used -+to test that the back-end server is running and if not raise an -+alert. -+.PP -+\&\fBport:PORT number\fR. The port number to connect to -+.PP -+\&\fBunixsocket:UNIXSOCKET \s-1PATH\s0\fR. Specifies the path to a Unix -+socket. Servers based on Unix sockets, always runs on the local -+machine and does not use a port. -+.PP -+\&\fBtype:TYPE {TCP|UDP|TCPSSL}\fR. Optionally specify the socket type -+monit should use when trying to connect to the port. The -+different socket types are; \s-1TCP\s0, \s-1UDP\s0 or \s-1TCPSSL\s0, where \s-1TCP\s0 is a -+regular stream based socket, \s-1UDP\s0 is a datagram socket and \s-1TCPSSL\s0 -+specify that monit should use a \s-1TCP\s0 socket with \s-1SSL\s0 when -+connecting to a port. The default socket type is \s-1TCP\s0. If \s-1TCPSSL\s0 -+is used you may optionally specify the \s-1SSL/TLS\s0 protocol to be -+used and the md5 sum of the server's certificate. The \s-1TCPSSL\s0 -+options are: -+.PP -+.Vb 1 -+\& TCPSSL [SSLAUTO|SSLV2|SSLV3|TLSV1] [CERTMD5 md5sum] -+.Ve -+.PP -+\&\fBproto(col):PROTO {protocols}\fR. Optionally specify the protocol -+monit should speak when a connection is established. At the -+moment monit knows how to speak: -+ \fIAPACHE-STATUS\fR -+ \fI\s-1DNS\s0\fR -+ \fI\s-1DWP\s0\fR -+ \fI\s-1FTP\s0\fR -+ \fI\s-1HTTP\s0\fR -+ \fI\s-1IMAP\s0\fR -+ \fI\s-1CLAMAV\s0\fR -+ \fI\s-1LDAP2\s0\fR -+ \fI\s-1LDAP3\s0\fR -+ \fI\s-1MYSQL\s0\fR -+ \fI\s-1NNTP\s0\fR -+ \fI\s-1NTP3\s0\fR -+ \fI\s-1POP\s0\fR -+ \fIPOSTFIX-POLICY\fR -+ \fI\s-1RDATE\s0\fR -+ \fI\s-1RSYNC\s0\fR -+ \fI\s-1SMTP\s0\fR -+ \fI\s-1SSH\s0\fR -+ \fI\s-1TNS\s0\fR -+ \fI\s-1PGSQL\s0\fR -+If you have compiled monit with ssl support, monit can also speak -+the \s-1SSL\s0 variants such as: -+ \fI\s-1HTTPS\s0\fR -+ \fI\s-1FTPS\s0\fR -+ \fI\s-1POPS\s0\fR -+ \fI\s-1IMAPS\s0\fR -+To use the \s-1SSL\s0 protocol support you need to define the socket as -+\&\s-1SSL\s0 and use the general protocol name (for example in the case of -+\&\s-1HTTPS\s0) : -+ \s-1TYPE\s0 \s-1TCPSSL\s0 \s-1PROTOCOL\s0 \s-1HTTP\s0 -+If the server's protocol is not found in this list, simply do not -+specify the protocol and monit will utilize a default test, -+including testing if it is possible to read and write to the -+port. This default test is in most cases more than good enough to -+deduce if the server behind the port is up or not. -+.PP -+The protocol statement is: -+.PP -+.Vb 1 -+\& [PROTO(COL) {name} [REQUEST {"/path"} [with CHECKSUM checksum]] -+.Ve -+.PP -+As you can see, you may specify a request after the protocol, at -+the moment only the \s-1HTTP\s0 protocol supports the request option. -+See also below for an example. -+.PP -+In addition to the standard protocols, the \fIAPACHE-STATUS\fR -+protocol is a test of a specific server type, rather than a -+generic protocol. Server performance is examined using the status -+page generated by Apache's mod_status, which is expected to be at -+its default address of http://www.example.com/server\-status. -+Currently the \fIAPACHE-STATUS\fR protocol examines the percentage -+of Apache child processes which are -+.PP -+.Vb 10 -+\& o logging (loglimit) -+\& o closing connections (closelimit) -+\& o performing DNS lookups (dnslimit) -+\& o in keepalive with a client (keepalivelimit) -+\& o replying to a client (replylimit) -+\& o receiving a request (requestlimit) -+\& o initialising (startlimit) -+\& o waiting for incoming connections (waitlimit) -+\& o gracefully closing down (gracefullimit) -+\& o performing cleanup procedures (cleanuplimit) -+.Ve -+.PP -+Each of these quantities can be compared against a value relative -+to the total number of active Apache child processes. If the -+comparison expression is true the chosen action is performed. -+.PP -+The apache-status protocol statement is formally defined as -+(keywords in uppercase): -+.PP -+.Vb 1 -+\& PROTO(COL) {limit} OP PERCENT [OR {limit} OP PERCENT]* -+.Ve -+.PP -+where {limit} is one or more of: loglimit, closelimit, dnslimit, -+keepalivelimit, replylimit, requestlimit, startlimit, waitlimit -+gracefullimit or cleanuplimit. The operator \s-1OP\s0 is one of: -+[<|=|>]. -+.PP -+You can combine all of these test into one expression or you can -+choose to test a certain limit. If you combine the limits you -+must or' them together using the \s-1OR\s0 keyword. -+.PP -+Here's an example were we test for a loglimit more than 10 -+percent, a dnslimit over 25 percent and a wait limit less than 20 -+percent of processes. See also more examples below in the example -+section. -+.PP -+.Vb 5 -+\& protocol apache\-status -+\& loglimit > 10% or -+\& dnslimit > 50% or -+\& waitlimit < 20% -+\& then alert -+.Ve -+.PP -+Obviously, do not use this test unless the httpd server you are -+testing is Apache Httpd and mod_status is activated on the -+server. -+.PP -+\&\fBsend/expect: {SEND|EXPECT} \*(L"string\*(R" ...\fR. If monit does not -+support the protocol spoken by the server, you can write your own -+protocol-test using \fIsend\fR and \fIexpect\fR strings. The \fI\s-1SEND\s0\fR -+statement sends a string to the server port and the \fI\s-1EXPECT\s0\fR -+statement compares a string read from the server with the string -+given in the expect statement. If your system supports \s-1POSIX\s0 -+regular expressions, you can use regular expressions in the -+expect string, see \fIregex\fR\|(7) to learn more about the types of -+regular expressions you can use in an expect string. Otherwise -+the string is used as it is. The send/expect statement is: -+.PP -+.Vb 1 -+\& [{SEND|EXPECT} "string"]+ -+.Ve -+.PP -+Note that monit will send a string as it is, and you \fBmust\fR -+remember to include \s-1CR\s0 and \s-1LF\s0 in the string sent to the server if -+the protocol expect such characters to terminate a string (most -+text based protocols used over Internet does). Likewise monit -+will read up to 256 bytes from the server and use this string -+when comparing the expect string. If the server sends strings -+terminated by \s-1CRLF\s0, (i.e. \*(L"\er\en\*(R") you \fImay\fR remember to add the -+same terminating characters to the string you expect from the -+server. -+.PP -+You can use non-printable characters in a send string if -+needed. Use the hex notation, \e0xHEXHEX to send any char in the -+range \e0x00\-\e0xFF, that is, 0\-255 in decimal. This may be useful -+when testing some network protocols, particularly those over -+\&\s-1UDP\s0. An example, to test a quake 3 server you can use the -+following, -+.PP -+.Vb 2 -+\& send "\e0xFF\e0xFF\e0xFF\e0xFFgetstatus" -+\& expect "sv_floodProtect|sv_maxPing" -+.Ve -+.PP -+Finally, send/expect can be used with any socket type, such as -+\&\s-1TCP\s0 sockets, \s-1UNIX\s0 sockets and \s-1UDP\s0 sockets. -+.PP -+\&\fBtimeout:with \s-1TIMEOUT\s0 x \s-1SECONDS\s0\fR. Optionally specifies the -+connect and read timeout for the connection. If monit cannot -+connect to the server within this time it will assume that the -+connection failed and execute the specified action. The default -+connect timeout is 5 seconds. -+.PP -+\&\fIaction\fR is a choice of \*(L"\s-1ALERT\s0\*(R", \*(L"\s-1RESTART\s0\*(R", \*(L"\s-1START\s0\*(R", \*(L"\s-1STOP\s0\*(R", -+\&\*(L"\s-1EXEC\s0\*(R", \*(L"\s-1MONITOR\s0\*(R" or \*(L"\s-1UNMONITOR\s0\*(R". -+.PP -+Connection testing using the \s-1URL\s0 notation -+.IX Subsection "Connection testing using the URL notation" -+.PP -+You can test a \s-1HTTP\s0 server using the compact \s-1URL\s0 syntax. This -+test also allow you to use \s-1POSIX\s0 regular expressions to test the -+content returned by the \s-1HTTP\s0 server. -+.PP -+The full syntax for the \s-1URL\s0 statement is as follows (keywords are -+in capital and optional statements in [brackets]): -+.PP -+.Vb 5 -+\& IF FAILED URL ULR\-spec -+\& [CONTENT {==|!=} "regular\-expression"] -+\& [TIMEOUT number SECONDS] [[<X>] <Y> CYCLES] -+\& THEN action -+\& [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action] -+.Ve -+.PP -+Where URL-spec is an \s-1URL\s0 on the standard form as specified in \s-1RFC\s0 -+2396: -+.PP -+.Vb 1 -+\& <protocol>://<authority><path>?<query> -+.Ve -+.PP -+Here is an example on an \s-1URL\s0 where all components are used: -+.PP -+.Vb 1 -+\& http://user:password@www.foo.bar:8080/document/?querystring#ref -+.Ve -+.PP -+If a username and password is included in the \s-1URL\s0 monit will -+attempt to login at the server using \fBBasic Authentication\fR. -+.PP -+Testing the content returned by the server is optional. If used, -+you can test if the content \fBmatch\fR or does \fBnot match\fR a -+regular expression. Here's an example on how the \s-1URL\s0 statement -+can be used in a \fIcheck service\fR: -+.PP -+.Vb 5 -+\& check host FOO with address www.foo.bar -+\& if failed url -+\& http://user:password@www.foo.bar:8080/?querystring -+\& and content == 'action="j_security_check"' -+\& then ... -+.Ve -+.PP -+Monit will look at the content-length header returned by the -+server and download this amount before testing the content. That -+is, if the content-length is more than 1Mb or this header is not -+set by the server monit will default to download up to 1 Mb and -+not more. -+.PP -+Only the http(s) protocol is supported in an \s-1URL\s0 statement. If -+the protocol is \fBhttps\fR monit will use \s-1SSL\s0 when connecting to -+the server. -+.PP -+Remote host ping test -+.IX Subsection "Remote host ping test" -+.PP -+In addition monit can perform \s-1ICMP\s0 Echo tests in remote host -+checks. The icmp test may only be used in a check host entry and -+monit must run with super user privileges, that is, the root user -+must run monit. The reason is that the icmp test utilize a raw -+socket to send the icmp packet and only the super user is allowed -+to create a raw socket. -+.PP -+The full syntax for the \s-1ICMP\s0 Echo statement used for ping testing -+is as follows (keywords are in capital and optional statements in -+[brackets]): -+.PP -+.Vb 5 -+\& IF FAILED ICMP TYPE ECHO -+\& [COUNT number] [WITH] [TIMEOUT number SECONDS] -+\& [[<X>] <Y> CYCLES] -+\& THEN action -+\& [ELSE IF PASSED [[<X>] <Y> CYCLES] THEN action] -+.Ve -+.PP -+The rules for action and timeout are the same as those mentioned -+above in the \s-1CONNECTION\s0 \s-1TESTING\s0 section. The count parameter -+specifies how many consecutive echo requests will be send to the -+host in one cycle. In the case that no reply came within timeout -+frame, monit reports error. When at least one reply was received, -+the test will pass. Monit sends by default three echo requests in -+one cycle to prevent the random packet loss from generating false -+alarm (i.e. up to 66% packet loss is tolerated). You can set the -+count option to different value, which can serve as error ratio. -+For example in the case that you require 100% ping success, you -+can set the count to 1 (i.e. just one attempt will be send, when -+the packet was lost, then error will be reported). -+.PP -+An icmp ping test is useful for testing if a host is up, before -+testing ports at the host. If an icmp ping test is used in a -+check host entry, this test is run first and if the ping test -+should fail we assume that the connection to the host is down and -+monit does \fInot\fR continue to test any ports. Here's an example: -+.PP -+.Vb 6 -+\& check host xyzzy with address xyzzy.org -+\& if failed icmp type echo count 5 with timeout 15 seconds -+\& then alert -+\& if failed port 80 proto http then alert -+\& if failed port 443 type TCPSSL proto http then alert -+\& alert foo@bar -+.Ve -+.PP -+In this case, if the icmp test should fail you will get \fIone\fR -+alert and only one alert as long as the host is down, and equally -+important, monit will \fInot\fR test port 80 and port 443. Likewise -+if the icmp ping test should succeed (again) monit will continue -+to test both port 80 and 443. -+.PP -+Keep in mind though that some firewalls can block icmp packages -+and thus render the test useless. -+.PP -+Examples -+.IX Subsection "Examples" -+.PP -+To check a port connection and receive an alert if monit cannot -+connect to the port, use the following statement: -+.PP -+.Vb 1 -+\& if failed port 80 then alert -+.Ve -+.PP -+In this case the machine in question is assumed to be the default -+host. For a process entry it's \fIlocalhost\fR and for a remote host -+entry it's the \fIaddress\fR of the remote host. Monit will conduct -+a tcp connection to the host at port 80 and use tcp by default. -+If you want to connect with udp, you can specify this after the -+port\-statement; -+.PP -+.Vb 1 -+\& if failed port 53 type udp protocol dns then alert -+.Ve -+.PP -+Monit will stop trying to connect to the port after 5 seconds and -+assume that the server behind the port is down. You may increase -+or decrease the connect timeout by explicit add a connection -+timeout. In the following example the timeout is increased to 15 -+seconds and if monit cannot connect to the server within 15 -+seconds the test will fail and an alert message is sent. -+.PP -+.Vb 1 -+\& if failed port 80 with timeout 15 seconds then alert -+.Ve -+.PP -+If a server is listening to a Unix socket the following statement -+can be used: -+.PP -+.Vb 1 -+\& if failed unixsocket /var/run/sophie then alert -+.Ve -+.PP -+A Unix socket is used by some servers for fast (interprocess) -+communication on localhost only. A Unix socket is specified by a -+path and in the example above the path, /var/run/sophie, -+specifies a Unix socket. -+.PP -+If your machine answers for several virtual hosts you can prefix -+the port statement with a host-statement like so: -+.PP -+.Vb 3 -+\& if failed host www.sol.no port 80 then alert -+\& if failed host 80.69.226.133 port 443 then alert -+\& if failed host kvasir.sol.no port 80 then alert -+.Ve -+.PP -+And as mentioned above, if you do not specify a host\-statement, -+\&\fIlocalhost\fR or \fIaddress\fR is assumed. -+.PP -+Monit also knows how to speak some of the more popular Internet -+protocols. So, besides testing for connections, monit can also -+speak with the server in question to verify that the server -+works. For example, the following is used to test a http server: -+.PP -+.Vb 2 -+\& if failed host www.tildeslash.com port 80 proto http -+\& then restart -+.Ve -+.PP -+Some protocols also support a request statement. This statement -+can be used to ask the server for a special document entity. -+.PP -+Currently \fBonly\fR the \fI\s-1HTTP\s0\fR protocol module supports the -+request statement, such as: -+.PP -+.Vb 3 -+\& if failed host www.myhost.com port 80 protocol http -+\& and request "/data/show.php?a=b&c=d" -+\& then restart -+.Ve -+.PP -+The request must contain an \s-1URI\s0 string specifying a document from -+the http server. The string will be \s-1URL\s0 encoded by monit before -+it sends the request to the http server, so it's okay to use \s-1URL\s0 -+unsafe characters in the request. If the request statement isn't -+specified, the default web server page will be requested. -+.PP -+You can also test the checksum for documents returned by a http -+server. You can use either \s-1MD5\s0 sums: -+.PP -+.Vb 4 -+\& if failed port 80 protocol http -+\& and request "/page.html" -+\& with checksum 8f7f419955cefa0b33a2ba316cba3659 -+\& then alert -+.Ve -+.PP -+Or you can use \s-1SHA1\s0 sums: -+.PP -+.Vb 4 -+\& if failed port 80 protocol http -+\& and request "/page.html" -+\& with checksum e428302e260e0832007d82de853aa8edf19cd872 -+\& then alert -+.Ve -+.PP -+monit will compute a checksum (either \s-1MD5\s0 or \s-1SHA1\s0 is used, -+depending on length of the hash) for the document (in the above -+case, /page.html) and compare the computed checksum with the -+expected checksum. If the sums does not match then the if-tests -+action is performed, in this case alert. Note that monit will -+\&\fBnot\fR test the checksum for a document if the server does not -+set the \s-1HTTP\s0 \fIContent-Length\fR header. A \s-1HTTP\s0 server should set -+this header when it server a static document (i.e. a file). A -+server will often use chunked transfer encoding instead when -+serving dynamic content (e.g. a document created by a CGI-script -+or a Servlet), but to test the checksum for dynamic content is -+not very useful. There are no limitation on the document size, -+but keep in mind that monit will use time to download the -+document over the network so it's probably smart not to ask monit -+to compute a checksum for documents larger than 1Mb or so, -+depending on you network connection of course. Tip; If you get a -+checksum error even if the document has the correct sum, the -+reason may be that the download timed out. In this case, explicit -+set a longer timeout than the default 5 seconds. -+.PP -+As mentioned above, if the server protocol is not supported by -+monit you can write your own protocol test using send/expect -+strings. Here we show a protocol test using send/expect for an -+imaginary \*(L"Ali Baba and the Forty Thieves\*(R" protocol: -+.PP -+.Vb 6 -+\& if failed host cave.persia.ir port 4040 -+\& send "Open, Sesame!\er\en" -+\& expect "Please enter the cave\er\en" -+\& send "Shut, Sesame!\er\en" -+\& expect "See you later [A\-Za\-z ]+\er\en" -+\& then restart -+.Ve -+.PP -+The \fI\s-1TCPSSL\s0\fR statement can optionally test the md5 sum of the -+server's certificate. You must state the md5 certificate string -+you expect the server to deliver and upon a connect to the -+server, the server's actual md5 sum certificate string is tested. -+Any other symbol but [A\-Fa\-f0\-9] is being ignored in that sting. -+Thus it is possible to copy and paste the output of e.g. openssl. -+If they do not match, the connection test fails. If the ssl -+version handshake does not work properly you can also force a -+specific ssl version, as we demonstrate in this example: -+.PP -+.Vb 10 -+\& if failed host shop.sol.no port 443 -+\& type TCPSSL SSLV3 # Force monit to use ssl version 3 -+\& # We expect the server to return this md5 certificate sum -+\& # as either 12\-34\-56\-78\-90\-AB\-CD\-EF\-12\-34\-56\-78\-90\-AB\-CD\-EF -+\& # or e.g. 1234567890ABCDEF1234567890ABCDEF -+\& # or e.g. 1234567890abcdef1234567890abcdef -+\& # what ever come in more handy (see text above) -+\& CERTMD5 12\-34\-56\-78\-90\-AB\-CD\-EF\-12\-34\-56\-78\-90\-AB\-CD\-EF -+\& protocol http -+\& then restart -+.Ve -+.PP -+Here's an example where a connection test is used inside a -+process entry: -+.PP -+.Vb 4 -+\& check process apache with pidfile /var/run/apache.pid -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if failed host www.tildeslash.com port 80 then restart -+.Ve -+.PP -+Here, a connection test is used in a remote host entry: -+.PP -+.Vb 2 -+\& check host up2date with address ftp.redhat.com -+\& if failed port 21 and protocol ftp then alert -+.Ve -+.PP -+Since we did not explicit specify a host in the above test, monit -+will connect to port 21 at ftp.redhat.com. Apropos, the host -+address can be specified as a dotted \s-1IP\s0 address string or as -+hostname in the \s-1DNS\s0. The following is exactly[*] the same test, -+but here an ip address is used instead: -+.PP -+.Vb 2 -+\& check host up2date with address 66.187.232.30 -+\& if failed port 21 and protocol ftp then alert -+.Ve -+.PP -+[*] Well, not quite, since we specify an ip-address directly we -+will bypass any \s-1DNS\s0 round-robin setup, but that's another story. -+.PP -+For more examples, see the example section below. -+.SH "MONIT HTTPD" -+.IX Header "MONIT HTTPD" -+If specified in the control file, monit will start a monit daemon -+with http support. From a Browser you can then start and stop -+services, disable or enable service monitoring as well as view -+the status of each service. Also, if monit logs to its own file, -+you can view the content of this logfile in a Browser. -+.PP -+The control file statement for starting a monit daemon with http -+support is a global set\-statement: -+.IP "set httpd port 2812" 4 -+.IX Item "set httpd port 2812" -+.PP -+And you can use this \s-1URL\s0, \fIhttp://localhost:2812/\fR, to access -+the daemon from a browser. The port number, in this case 2812, -+can be any number that you are allowed to bind to. -+.PP -+If you have compiled monit with openssl, you can also start the -+httpd server with ssl support, using the following expression: -+.PP -+.Vb 3 -+\& set httpd port 2812 -+\& ssl enable -+\& pemfile /etc/certs/monit.pem -+.Ve -+.PP -+And you can use this \s-1URL\s0, \fIhttps://localhost:2812/\fR, to access -+the monit web server over an ssl encrypted connection. -+.PP -+The pemfile, in the example above, holds both the server's -+private key and certificate. This file should be stored in a safe -+place on the filesystem and should have strict permissions, that -+is, no more than 0700. -+.PP -+In addition, if you want to check for client certificates you can -+use the \s-1CLIENTPEMFILE\s0 statement. In this case, a connecting -+client has to provided a certificate known by monit in order to -+connect. This file also needs to have all necessary \s-1CA\s0 -+certificates. A configuration could look like: -+.PP -+.Vb 4 -+\& set httpd port 2812 -+\& ssl enable -+\& pemfile /etc/certs/monit.pem -+\& clientpemfile /etc/certs/monit\-client.pem -+.Ve -+.PP -+By default self signed client certificates are not allowed. If -+you want to use a self signed certificate from a client it has to -+be allowed explicitly with the \s-1ALLOWSELFCERTIFICATION\s0 statement. -+.PP -+For more information on how to use monit with \s-1SSL\s0 and for more -+information about certificates and generating pem files, please -+consult the \s-1README\s0.SSL file accompanying the software. -+.PP -+If you only want the http server to accept connect requests to -+one host addresses you can specify the bind address either as an -+\&\s-1IP\s0 number string or as a hostname. In the following example we -+bind the http server to the loopback device. In other words the -+http server will only be reachable from localhost: -+.PP -+.Vb 1 -+\& set httpd port 2812 and use the address 127.0.0.1 -+.Ve -+.PP -+or -+.PP -+.Vb 1 -+\& set httpd port 2812 and use the address localhost -+.Ve -+.PP -+If you do not use the \s-1ADDRESS\s0 statement the http server will -+accept connections on any/all local addresses. -+.PP -+It is possible to hide monit's httpd server version, which -+usually is available in httpd header responses and in error -+pages. -+.PP -+.Vb 3 -+\& set httpd port 2812 -+\& ... -+\& signature {enable|disable} -+.Ve -+.PP -+Use \fIdisable\fR to hide the server signature \- monit will only -+report its name (e.g. 'monit' instead of for example 'monit -+4.2'). By default the version signature is enabled. It is worth -+to stress that this option provides no security advantage and -+falls into the \*(L"security through obscurity\*(R" category. -+.PP -+If you remove the httpd statement from the config file, monit -+will stop the httpd server on configuration reload. Likewise if -+you change the port number, monit will restart the http server -+using the new specified port number. -+.PP -+The status page displayed by the monit web server is -+automatically refreshed with the same poll time set for the monit -+daemon. -+.PP -+\&\fBNote:\fR -+.PP -+We strongly recommend that you start monit with http support (and -+bind the server to localhost, only, unless you are behind a -+firewall). The built-in web-server is small and does not use much -+resources, and more \fIimportantly\fR, monit can use the http server -+for interprocess communication between a monit client and a monit -+daemon. -+.PP -+For instance, you \fImust\fR start a monit daemon with http support -+if you want to be able to use the following console commands. -+(That is; most of the available console commands). -+.PP -+.Vb 12 -+\& 'monit stop all' -+\& 'monit start all' -+\& 'monit stop service' -+\& 'monit start service' -+\& 'monit restart service' -+\& 'monit monitor service' -+\& 'monit unmonitor service' -+\& 'monit \-g groupname stop all' -+\& 'monit \-g groupname start all' -+\& 'monit \-g groupname restart all' -+\& 'monit \-g groupname monitor all' -+\& 'monit \-g groupname unmonitor all' -+.Ve -+.PP -+If a monit daemon is running in the background we will ask the -+daemon (via the \s-1HTTP\s0 protocol) to execute the above commands. -+That is, the daemon is requested to start and stop the services. -+This ensures that a daemon will not restart a service that you -+requested to stop and that (any) timeout lock will be removed -+from a service when you start it. -+.Sh "Monit \s-1HTTPD\s0 Authentication" -+.IX Subsection "Monit HTTPD Authentication" -+monit supports two types of authentication schema's for -+connecting to the httpd server, (three, if you count \s-1SSL\s0 client -+certificate validation). Both schema's can be used together or by -+itself. You \fBmust\fR choose at least one. -+.PP -+Host and network allow list -+.IX Subsection "Host and network allow list" -+.PP -+The http server maintains an access-control list of hosts and -+networks allowed to connect to the server. You can add as many -+hosts as you want to, but only hosts with a valid domain name or -+its \s-1IP\s0 address are allowed. If you specify a hostname that does -+not resolve, monit will write an error message in the console and -+not start. Networks require a network \s-1IP\s0 and a netmask to be -+accepted. -+.PP -+The http server will query a name server to check any hosts -+connecting to the server. If a host (client) is trying to connect -+to the server, but cannot be found in the access list or cannot -+be resolved, the server will shutdown the connection to the -+client promptly. -+.PP -+Control file example: -+.PP -+.Vb 6 -+\& set httpd port 2812 -+\& allow localhost -+\& allow my.other.work.machine.com -+\& allow 10.1.1.1 -+\& allow 192.168.1.0/255.255.255.0 -+\& allow 10.0.0.0/8 -+.Ve -+.PP -+Clients, not mentioned in the allow list that tries to connect to -+the server are logged with their ip\-address. -+.PP -+Basic Authentication -+.IX Subsection "Basic Authentication" -+.PP -+This authentication schema is \s-1HTTP\s0 specific and described in more -+detail in \s-1RFC\s0 2617. -+.PP -+In short; a server challenge a client (e.g. a Browser) to send -+authentication information (username and password) and if -+accepted, the server will allow the client access to the -+requested document. -+.PP -+The biggest weakness with Basic Authentication is that the -+username and password is sent in clear-text (i.e. base64 encoded) -+over the network. It is therefor recommended that you do not use -+this authentication method unless you run the monit http server -+with \fIssl\fR support. With ssl support it is completely safe to -+use Basic Authentication since \fBall\fR http data, including Basic -+Authentication headers will be encrypted. -+.PP -+monit will use Basic Authentication if an allow statement -+contains a username and a password separated with a single ':' -+character, like so; \fIallow username:password\fR. The username and -+password must be written in clear\-text. -+.PP -+Alternatively you can use files in \*(L"htpasswd\*(R" format (one -+user:passwd entry per line), like so: \fIallow -+[cleartext|crypt|md5] /path [users]\fR. By default cleartext -+passwords are read. In case the passwords are digested it is -+necessary to specify the cryptographic method. In order to select -+the users their names can be added to the allow statement. -+Otherwise all users are added. -+.PP -+Example: -+.PP -+.Vb 3 -+\& set httpd port 2812 -+\& allow hauk:password -+\& allow md5 /etc/httpd/htpasswd john paul ringo george -+.Ve -+.PP -+If you use this method together with a host list, then only -+clients from the listed hosts will be allowed to connect to the -+monit http server and each client will be asked to provide a -+username and a password. -+.PP -+Example: -+.PP -+.Vb 4 -+\& set httpd port 2812 -+\& allow localhost -+\& allow 10.1.1.1 -+\& allow hauk:password -+.Ve -+.PP -+If you only want to use Basic Authentication, then just provide -+allow entries with username and password, like so: -+.PP -+.Vb 3 -+\& set httpd port 2812 -+\& allow hauk:password -+\& allow admin:password -+.Ve -+.PP -+Finally it is possible to define some users as read\-only. A -+read-only user can read the monit web pages but will \fInot\fR get -+access to push-buttons and cannot change a service from the web -+interface. -+.PP -+.Vb 3 -+\& set httpd port 2812 -+\& allow admin:password -+\& allow hauk:password read\-only -+.Ve -+.PP -+A user is set to read-only by using the \fIread-only\fR keyword -+\&\fBafter\fR username:password. In the above example the user \fIhauk\fR -+is defined as a read-only user, while the \fIadmin\fR user has all -+access rights. -+.PP -+\&\s-1NB\s0! a monit client will use the \fIfirst\fR username:password pair -+in an allow list and you should \fBnot\fR define the first user as a -+read-only user. If you do, monit console commands will not work. -+.PP -+If you use Basic Authentication it is a good idea to set the -+access permission for the control file (~/.monitrc) to only -+readable and writable for the user running monit, because the -+password is written in clear\-text. (Use this command, /bin/chmod -+600 ~/.monitrc). In fact, since monit \fBversion 3.0\fR, monit will -+complain and exit if the control file is readable by others. -+.PP -+Clients trying to connect to the server but supply the wrong -+username and/or password are logged with their ip\-address. -+.PP -+If the monit command line interface is being used at least one -+cleartext password is necessary. Otherwise, the monit command -+line interface will not be able to connect to the monit daemon -+server. -+.SH "DEPENDENCIES" -+.IX Header "DEPENDENCIES" -+If specified in the control file, monit can do dependency -+checking before start, stop, monitoring or unmonitoring of -+services. The dependency statement may be used within any service -+entries in the monit control file. -+.PP -+The syntax for the depend statement is simply: -+.IP "\s-1DEPENDS\s0 on service[, service [,...]]" 4 -+.IX Item "DEPENDS on service[, service [,...]]" -+.PP -+Where \fBservice\fR is a service entry name, for instance \fBapache\fR -+or \fBdatafs\fR. -+.PP -+You may add more than one service name of any type or use more -+than one depend statement in an entry. -+.PP -+Services specified in a \fIdepend\fR statement will be checked -+during stop/start/monitor/unmonitor operations. If a service is -+stopped or unmonitored it will stop/unmonitor any services that -+depends on itself. Likewise, if a service is started, it will -+first stop any services that depends on itself and after it is -+started, start all depending services again. If the service is to -+be monitored (enable monitoring), all services which this service -+depends on will be monitored before enabling monitoring of this -+service. -+.PP -+Here is an example where we set up an apache service entry to -+depend on the underlying apache binary. If the binary should -+change an alert is sent and apache is not monitored anymore. The -+rationale is security and that monit should not execute a -+possibly cracked apache binary. -+.PP -+.Vb 7 -+\& (1) check process apache -+\& (2) with pidfile "/usr/local/apache/logs/httpd.pid" -+\& (3) ... -+\& (4) depends on httpd -+\& (5) -+\& (6) check file httpd with path /usr/local/apache/bin/httpd -+\& (7) if failed checksum then unmonitor -+.Ve -+.PP -+The first entry is the process entry for apache shown before -+(abbreviated for clarity). The fourth line sets up a dependency -+between this entry and the service entry named httpd in line 6. A -+depend tree works as follows, if an action is conducted in a -+lower branch it will propagate upward in the tree and for every -+dependent entry execute the same action. In this case, if the -+checksum should fail in line 7 then an unmonitor action is -+executed and the apache binary is not checked anymore. But since -+the apache process entry depends on the httpd entry this entry -+will also execute the unmonitor action. In short, if the checksum -+test for the httpd binary file should fail, both the check file -+httpd entry and the check process apache entry is set in -+un-monitoring mode. -+.PP -+A dependency tree is a general construct and can be used between -+all types of service entries and span many levels and propagate -+any supported action (except the exec action which will not -+propagate upward in a dependency tree for obvious reasons). -+.PP -+Here is another different example. Consider the following common -+server setup: -+.PP -+.Vb 2 -+\& WEB\-SERVER \-> APPLICATION\-SERVER \-> DATABASE \-> FILESYSTEM -+\& (a) (b) (c) (d) -+.Ve -+.PP -+You can set dependencies so that the web-server depends on the -+application server to run before the web-server starts and the -+application server depends on the database server and the -+database depends on the file-system to be mounted before it -+starts. See also the example section below for examples using the -+depend statement. -+.PP -+Here we describe how monit will function with the above -+dependencies: -+.IP "If no servers are running" 4 -+.IX Item "If no servers are running" -+monit will start the servers in the following order: \fId\fR, \fIc\fR, -+\&\fIb\fR, \fIa\fR -+.IP "If all servers are running" 4 -+.IX Item "If all servers are running" -+When you run 'monit stop all' this is the stop order: \fIa\fR, \fIb\fR, -+\&\fIc\fR, \fId\fR. If you run 'monit stop d' then \fIa\fR, \fIb\fR and \fIc\fR -+are also stopped because they depend on \fId\fR and finally \fId\fR is -+stopped. -+.IP "If \fIa\fR does not run" 4 -+.IX Item "If a does not run" -+When monit runs it will start \fIa\fR -+.IP "If \fIb\fR does not run" 4 -+.IX Item "If b does not run" -+When monit runs it will first stop \fIa\fR then start \fIb\fR and -+finally start \fIa\fR again. -+.IP "If \fIc\fR does not run" 4 -+.IX Item "If c does not run" -+When monit runs it will first stop \fIa\fR and \fIb\fR then start \fIc\fR -+and finally start \fIb\fR then \fIa\fR. -+.IP "If \fId\fR does not run" 4 -+.IX Item "If d does not run" -+When monit runs it will first stop \fIa\fR, \fIb\fR and \fIc\fR then start -+\&\fId\fR and finally start \fIc\fR, \fIb\fR then \fIa\fR. -+.IP "If the control file contains a depend loop." 4 -+.IX Item "If the control file contains a depend loop." -+A depend loop is for example; a\->b and b\->a or a\->b\->c\->a. -+.Sp -+When monit starts it will check for such loops and complain and -+exit if a loop was found. It will also exit with a complaint if a -+depend statement was used that does not point to a service in the -+control file. -+.SH "THE RUN CONTROL FILE" -+.IX Header "THE RUN CONTROL FILE" -+The preferred way to set up monit is to write a \fI.monitrc\fR file -+in your home directory. When there is a conflict between the -+command-line arguments and the arguments in this file, the -+command-line arguments take precedence. To protect the security -+of your control file and passwords the control file must have -+permissions \fIno more than 0700\fR (u=xrw,g=,o=); monit will -+complain and exit otherwise. -+.Sh "Run Control Syntax" -+.IX Subsection "Run Control Syntax" -+Comments begin with a '#' and extend through the end of the line. -+Otherwise the file consists of a series of service entries or -+global option statements in a free\-format, token-oriented syntax. -+.PP -+There are three kinds of tokens: grammar keywords, numbers (i.e. -+decimal digit sequences) and strings. Strings can be either -+quoted or unquoted. A quoted string is bounded by double quotes -+and may contain whitespace (and quoted digits are treated as a -+string). An unquoted string is any whitespace-delimited token, -+containing characters and/or numbers. -+.PP -+On a semantic level, the control file consists of two types of -+entries: -+.IP "1. Global set-statements" 4 -+.IX Item "1. Global set-statements" -+A global set-statement starts with the keyword \fIset\fR and the -+item to configure. -+.IP "2. One or more service entry statements." 4 -+.IX Item "2. One or more service entry statements." -+Each service entry consists of the keywords `check', followed by -+the service type. Each entry requires a <unique> descriptive -+name, which may be freely chosen. This name is used by monit -+to refer to the service internally and in all interactions -+with the user. -+.PP -+Currently, six types of check statements are supported: -+.IP "1. \s-1CHECK\s0 \s-1PROCESS\s0 <unique name> \s-1PIDFILE\s0 <path>" 4 -+.IX Item "1. CHECK PROCESS <unique name> PIDFILE <path>" -+<path> is the absolute path to the program's pidfile. If the -+pidfile does not exist or does not contain the pid number of a -+running process, monit will call the entry's start method if -+defined, If monit runs in passive mode or the start methods is -+not defined, monit will just send alerts on errors. -+.IP "2. \s-1CHECK\s0 \s-1FILE\s0 <unique name> \s-1PATH\s0 <path>" 4 -+.IX Item "2. CHECK FILE <unique name> PATH <path>" -+<path> is the absolute path to the file. If the file does not -+exist or disappeared, monit will call the entry's start method if -+defined, if <path> does not point to a regular file type (for -+instance a directory), monit will disable monitoring of this -+entry. If monit runs in passive mode or the start methods is not -+defined, monit will just send alerts on errors. -+.IP "3. \s-1CHECK\s0 \s-1FIFO\s0 <unique name> \s-1PATH\s0 <path>" 4 -+.IX Item "3. CHECK FIFO <unique name> PATH <path>" -+<path> is the absolute path to the fifo. If the fifo does not -+exist or disappeared, monit will call the entry's start method if -+defined, if <path> does not point to a fifo type (for -+instance a directory), monit will disable monitoring of this -+entry. If monit runs in passive mode or the start methods is not -+defined, monit will just send alerts on errors. -+.IP "4. \s-1CHECK\s0 \s-1DEVICE\s0 <unique name> \s-1PATH\s0 <path>" 4 -+.IX Item "4. CHECK DEVICE <unique name> PATH <path>" -+<path> is the path to the device block special file, mount point, -+file or a directory which is part of a filesystem. It is -+recommended to use a block special file directly (for example -+/dev/hda1 on Linux or /dev/dsk/c0t0d0s1 on Solaris, etc.) If you -+use a mount point (for example /data), be careful, because if the -+device is unmounted the test will still be true because the mount -+point exist. -+.Sp -+If the device becomes unavailable, monit will call the entry's -+start method if defined. if <path> does not point to a device, -+monit will disable monitoring of this entry. If monit runs in -+passive mode or the start methods is not defined, monit will just -+send alerts on errors. -+.IP "5. \s-1CHECK\s0 \s-1DIRECTORY\s0 <unique name> \s-1PATH\s0 <path>" 4 -+.IX Item "5. CHECK DIRECTORY <unique name> PATH <path>" -+<path> is the absolute path to the directory. If the directory -+does not exist or disappeared, monit will call the entry's start -+method if defined, if <path> does not point to a directory, monit -+will disable monitoring of this entry. If monit runs in passive -+mode or the start methods is not defined, monit will just send -+alerts on errors. -+.IP "6. \s-1CHECK\s0 \s-1HOST\s0 <unique name> \s-1ADDRESS\s0 <host address>" 4 -+.IX Item "6. CHECK HOST <unique name> ADDRESS <host address>" -+The host address can be specified as a hostname string or as an -+ip-address string on a dotted decimal format. Such as, -+tildeslash.com or \*(L"64.87.72.95\*(R". -+.IP "7. \s-1CHECK\s0 \s-1SYSTEM\s0 <unique name>" 4 -+.IX Item "7. CHECK SYSTEM <unique name>" -+The system name is usualy hostname, but any descriptive name can be -+used. This test allows to check general system resources such as -+\&\s-1CPU\s0 usage (percent of time spent in user, system and wait), total -+memory usage or load average. -+.PP -+You can use noise keywords like 'if', `and', `with(in)', `has', -+`using', 'use', 'on(ly)', `usage' and `program(s)' anywhere in an -+entry to make it resemble English. They're ignored, but can make -+entries much easier to read at a glance. The punctuation -+characters ';' ',' and '=' are also ignored. Keywords are case -+insensitive. -+.PP -+.Vb 1 -+\& Here are the legal global keywords: -+.Ve -+.PP -+.Vb 50 -+\& Keyword Function -+\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- -+\& set daemon Set a background poll interval in seconds. -+\& set init Set monit to run from init. monit will not -+\& transform itself into a daemon process. -+\& set logfile Name of a file to dump error\- and status\- -+\& messages to. If syslog is specified as the -+\& file, monit will utilize the syslog daemon -+\& to log messages. This can optionally be -+\& followed by 'facility <facility>' where -+\& facility is 'log_local0' \- 'log_local7' or -+\& 'log_daemon'. If no facility is specified, -+\& LOG_USER is used. -+\& set mailserver The mailserver used for sending alert -+\& notifications. If the mailserver is not -+\& defined, monit will try to use 'localhost' -+\& as the smtp\-server for sending mail. You -+\& can add more mail servers, if monit cannot -+\& connect to the first server it will try the -+\& next server and so on. -+\& set mail\-format Set a global mail format for all alert -+\& messages emitted by monit. -+\& set pidfile Explicit set the location of the monit lock -+\& file. E.g. set pidfile /var/run/xyzmonit.pid. -+\& set statefile Explicit set the location of the file monit -+\& will write state data to. If not set, the -+\& default is $HOME/.monit.state. -+\& set httpd port Activates monit http server at the given -+\& port number. -+\& ssl enable Enables ssl support for the httpd server. -+\& Requires the use of the pemfile statement. -+\& ssl disable Disables ssl support for the httpd server. -+\& It is equal to omitting any ssl statement. -+\& pemfile Set the pemfile to be used with ssl. -+\& clientpemfile Set the pemfile to be used when client -+\& certificates should be checked by monit. -+\& address If specified, the http server will only -+\& accept connect requests to this addresses -+\& This statement is an optional part of the -+\& set httpd statement. -+\& allow Specifies a host or IP address allowed to -+\& connect to the http server. Can also specify -+\& a username and password allowed to connect -+\& to the server. More than one allow statement -+\& are allowed. This statement is also an -+\& optional part of the set httpd statement. -+\& read\-only Set the user defined in username:password -+\& to read only. A read\-only user cannot change -+\& a service from the monit web interface. -+\& include include a file or files matching the globstring -+.Ve -+.PP -+.Vb 1 -+\& Here are the legal service entry keywords: -+.Ve -+.PP -+.Vb 174 -+\& Keyword Function -+\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- -+\& check Starts an entry and must be followed by the type -+\& of monitored service {device|directory|file|host -+\& process|system} and a descriptive name for the -+\& service. -+\& pidfile Specify the process pidfile. Every -+\& process must create a pidfile with its -+\& current process id. This statement should only -+\& be used in a process service entry. -+\& path Must be followed by a path to the block -+\& special file for filesystem (device), regular -+\& file, directory or a process's pidfile. -+\& group Specify a groupname for a service entry. -+\& start The program used to start the specified -+\& service. Full path is required. This -+\& statement is optional, but recommended. -+\& stop The program used to stop the specified -+\& service. Full path is required. This -+\& statement is optional, but recommended. -+\& pid and ppid These keywords may be used as standalone -+\& statements in a process service entry to -+\& override the alert action for change of -+\& process pid and ppid. -+\& uid and gid These keywords are either 1) an optional part of -+\& a start, stop or exec statement. They may be -+\& used to specify a user id and a group id the -+\& program (process) should switch to upon start. -+\& This feature can only be used if the superuser -+\& is running monit. 2) uid and gid may also be -+\& used as standalone statements in a file service -+\& entry to test a file's uid and gid attributes. -+\& host The hostname or IP address to test the port -+\& at. This keyword can only be used together -+\& with a port statement or in the check host -+\& statement. -+\& port Specify a TCP/IP service port number which -+\& a process is listening on. This statement -+\& is also optional. If this statement is not -+\& prefixed with a host\-statement, localhost is -+\& used as the hostname to test the port at. -+\& type Specifies the socket type monit should use when -+\& testing a connection to a port. If the type -+\& keyword is omitted, tcp is used. This keyword -+\& must be followed by either tcp, udp or tcpssl. -+\& tcp Specifies that monit should use a TCP -+\& socket type (stream) when testing a port. -+\& tcpssl Specifies that monit should use a TCP socket -+\& type (stream) and the secure socket layer (ssl) -+\& when testing a port connection. -+\& udp Specifies that monit should use a UDP socket -+\& type (datagram) when testing a port. -+\& certmd5 The md5 sum of a certificate a ssl forged -+\& server has to deliver. -+\& proto(col) This keyword specifies the type of service -+\& found at the port. monit knows at the moment -+\& how to speak HTTP, SMTP, FTP, POP, IMAP, MYSQL, -+\& NNTP, SSH, DWP, LDAP2, LDAP3, RDATE, NTP3, DNS, -+\& POSTFIX\-POLICY, APACHE\-STATUS, TNS, PGSQL and -+\& RSYNC. -+\& You're welcome to write new protocol test -+\& modules. If no protocol is specified monit will -+\& use a default test which in most cases are good -+\& enough. -+\& request Specifies a server request and must come -+\& after the protocol keyword mentioned above. -+\& \- for http it can contain an URL and an -+\& optional query string. -+\& \- other protocols does not support this -+\& statement yet -+\& send/expect These keywords specify a generic protocol. -+\& Both require a string whether to be sent or -+\& to be matched against (as extended regex if -+\& supported). Send/expect can not be used -+\& together with the proto(col) statement. -+\& unix(socket) Specifies a Unix socket file and used like -+\& the port statement above to test a Unix -+\& domain network socket connection. -+\& URL Specify an URL string which monit will use for -+\& connection testing. -+\& content Optional sub\-statement for the URL statement. -+\& Specifies that monit should test the content -+\& returned by the server against a regular -+\& expression. -+\& timeout x sec. Define a network port connection timeout. Must -+\& be followed by a number in seconds and the -+\& keyword, seconds. -+\& timeout Define a service timeout. Must be followed by -+\& two digits. The first digit is max number of -+\& restarts for the service. The second digit -+\& is the cycle interval to test restarts. -+\& This statement is optional. -+\& alert Specifies an email address for notification -+\& if a service event occurs. Alert can also -+\& be postfixed, to only send a message for -+\& certain events. See the examples above. More -+\& than one alert statement is allowed in an -+\& entry. This statement is also optional. -+\& noalert Specifies an email address which don't want -+\& to receive alerts. This statement is also -+\& optional. -+\& restart, stop These keywords may be used as actions for -+\& unmonitor, various test statements. The exec statement is -+\& start and special in that it requires a following string -+\& exec specifying the program to be execute. You may -+\& also specify an UID and GID for the exec -+\& statement. The program executed will then run -+\& using the specified user id and group id. -+\& mail\-format Specifies a mail format for an alert message -+\& This statement is an optional part of the -+\& alert statement. -+\& checksum Specify that monit should compute and monitor a -+\& file's md5/sha1 checksum. May only be used in a -+\& check file entry. -+\& expect Specifies a md5/sha1 checksum string monit -+\& should expect when testing the checksum. This -+\& statement is an optional part of the checksum -+\& statement. -+\& timestamp Specifies an expected timestamp for a file -+\& or directory. More than one timestamp statement -+\& are allowed. May only be used in a check file or -+\& check directory entry. -+\& changed Part of a timestamp statement and used as an -+\& operator to simply test for a timestamp change. -+\& every Validate this entry only at every n poll cycle. -+\& Useful in daemon mode when the cycle is short -+\& and a service takes some time to start. -+\& mode Must be followed either by the keyword active, -+\& passive or manual. If active, monit will restart -+\& the service if it is not running (this is the -+\& default behavior). If passive, monit will not -+\& (re)start the service if it is not running \- it -+\& will only monitor and send alerts (resource -+\& related restart and stop options are ignored -+\& in this mode also). If manual, monit will enter -+\& active mode only if a service was started under -+\& monit's control otherwise the service isn't -+\& monitored. -+\& cpu Must be followed by a compare operator, a number -+\& with "%" and an action. This statement is used -+\& to check the cpu usage in percent of a process -+\& with its children over a number of cycles. If -+\& the compare expression matches then the -+\& specified action is executed. -+\& mem The equivalent to the cpu token for memory of a -+\& process (w/o children!). This token must be -+\& followed by a compare operator a number with -+\& unit {B|KB|MB|GB|%|byte|kilobyte|megabyte| -+\& gigabyte|percent} and an action. -+\& loadavg Must be followed by [1min,5min,15min] in (), a -+\& compare operator, a number and an action. This -+\& statement is used to check the system load -+\& average over a number of cycles. If the compare -+\& expression matches then the specified action is -+\& executed. -+\& children This is the number of child processes spawn by a -+\& process. The syntax is the same as above. -+\& totalmem The equivalent of mem, except totalmem is an -+\& aggregation of memory, not only used by a -+\& process but also by all its child -+\& processes. The syntax is the same as above. -+\& space Must be followed by a compare operator, a -+\& number, unit {B|KB|MB|GB|%|byte|kilobyte| -+\& megabyte|gigabyte|percent} and an action. -+\& inode(s) Must be followed by a compare operator, integer -+\& number, optionally by percent sign (if not, the -+\& limit is absolute) and an action. -+\& perm(ission) Must be followed by an octal number describing -+\& the permissions. -+\& size Must be followed by a compare operator, a -+\& number, unit {B|KB|MB|GB|byte|kilobyte| -+\& megabyte|gigabyte} and an action. -+\& depends (on) Must be followed by the name of a service this -+\& service depends on. -+.Ve -+.PP -+Here's the complete list of reserved \fBkeywords\fR used by monit: -+.PP -+\&\fIif\fR, \fIthen\fR, \fIelse\fR, \fIset\fR, \fIdaemon\fR, \fIlogfile\fR, -+\&\fIsyslog\fR, \fIaddress\fR, \fIhttpd\fR, \fIssl\fR, \fIenable\fR, \fIdisable\fR, -+\&\fIpemfile\fR, \fIallow\fR, \fIread-only\fR, \fIcheck\fR, \fIinit\fR, \fIcount\fR, -+\&\fIpidfile\fR, \fIstatefile\fR, \fIgroup\fR, \fIstart\fR, \fIstop\fR, \fIuid\fR, -+\&\fIgid\fR, \fIconnection\fR, \fIport(number)\fR, \fIunix(socket)\fR, \fItype\fR, -+\&\fIproto(col)\fR, \fItcp\fR, \fItcpssl\fR, \fIudp\fR, \fIalert\fR, \fInoalert\fR, -+\&\fImail-format\fR, \fIrestart\fR, \fItimeout\fR, \fIchecksum\fR, \fIresource\fR, -+\&\fIexpect\fR, \fIsend\fR, \fImailserver\fR, \fIevery\fR, \fImode\fR, \fIactive\fR, -+\&\fIpassive\fR, \fImanual\fR, \fIdepends\fR, \fIhost\fR, \fIdefault\fR, \fIhttp\fR, -+\&\fIftp\fR, \fIsmtp\fR, \fIpop\fR, \fIntp3\fR, \fInntp\fR, \fIimap\fR, \fIclamav\fR, -+\&\fIssh\fR, \fIdwp\fR, \fIldap2\fR, \fIldap3\fR, \fItns\fR, \fIrequest\fR, \fIcpu\fR, -+\&\fImem\fR, \fItotalmem\fR, \fIchildren\fR, \fIloadavg\fR, \fItimestamp\fR, -+\&\fIchanged\fR, \fIsecond(s)\fR, \fIminute(s)\fR, \fIhour(s)\fR, \fIday(s)\fR, -+\&\fIspace\fR, \fIinode\fR, \fIpid\fR, \fIppid\fR, \fIperm(ission)\fR, \fIicmp\fR, -+\&\fIprocess\fR, \fIfile\fR, \fIdirectory\fR, \fIdevice\fR, \fIsize\fR, -+\&\fIunmonitor\fR, \fIrdate\fR, \fIrsync\fR, \fIdata\fR, \fIinvalid\fR, \fIexec\fR, -+\&\fInonexist\fR, \fIpolicy\fR, \fIreminder\fR, \fIinstance\fR, \fIeventqueue\fR, -+ \fIbasedir\fR, \fIslot(s)\fR, \fIsystem\fR and \fIfailed\fR -+.PP -+And here is a complete list of \fBnoise keywords\fR ignored by -+monit: -+.PP -+\&\fIis\fR, \fIas\fR, \fIare\fR, \fIon(ly)\fR, \fIwith(in)\fR, \fIand\fR, \fIhas\fR, -+\&\fIusing\fR, \fIuse\fR, \fIthe\fR, \fIsum\fR, \fIprogram(s)\fR, \fIthan\fR, \fIfor\fR, -+\&\fIusage\fR, \fIwas\fR, \fIbut\fR. -+.PP -+\&\fBNote:\fR If the \fIstart\fR or \fIstop\fR programs are shell scripts, -+then the script must begin with \f(CW\*(C`#!\*(C'\fR and the remainder of the -+first line must specify an interpreter for the program. E.g. -+\&\f(CW\*(C`#!/bin/sh\*(C'\fR -+.PP -+It's possible to write scripts directly into the \fIstart\fR and -+\&\fIstop\fR entries by using a string of shell\-commands. Like so: -+.PP -+.Vb 2 -+\& start="/bin/bash \-c 'echo $$ > pidfile; exec program'" -+\& stop="/bin/bash \-c 'kill \-s SIGTERM `cat pidfile`'" -+.Ve -+.Sh "\s-1CONFIGURATION\s0 \s-1EXAMPLES\s0" -+.IX Subsection "CONFIGURATION EXAMPLES" -+The simplest form is just the check statement. In this example we -+check to see if the server is running and log a message if not: -+.PP -+.Vb 1 -+\& check process resin with pidfile /usr/local/resin/srun.pid -+.Ve -+.PP -+To have monit start the server if it's not running, add a start -+statement: -+.PP -+.Vb 2 -+\& check process resin with pidfile /usr/local/resin/srun.pid -+\& start program = "/usr/local/resin/bin/srun.sh start" -+.Ve -+.PP -+Here's a more advanced example for monitoring an apache -+web-server listening on the default port number for \s-1HTTP\s0 and -+\&\s-1HTTPS\s0. In this example monit will restart apache if it's not -+accepting connections at the port numbers. The method monit use -+for a process restart is to first execute the stop\-program, wait -+for the process to stop and then execute the start\-program. (If -+monit was unable to stop or start the service a failed alert -+message will be sent if you have requested alert messages to be -+sent). -+.PP -+.Vb 5 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if failed port 80 then restart -+\& if failed port 443 with timeout 15 seconds then restart -+.Ve -+.PP -+This example demonstrate how you can run a program as a specified -+user (uid) and with a specified group (gid). Many daemon programs -+will do the uid and gid switch by them self, but for those -+programs that does not (e.g. Java programs), monit's ability to -+start a program as a certain user can be very useful. In this -+example we start the Tomcat Java Servlet Engine as the standard -+\&\fInobody\fR user and group. Please note that monit will only switch -+uid and gid for a program if the super-user is running monit, -+otherwise monit will simply ignore the request to change uid and -+gid. -+.PP -+.Vb 7 -+\& check process tomcat with pidfile /var/run/tomcat.pid -+\& start program = "/etc/init.d/tomcat start" -+\& as uid nobody and gid nobody -+\& stop program = "/etc/init.d/tomcat stop" -+\& # You can also use id numbers instead and write: -+\& as uid 99 and with gid 99 -+\& if failed port 8080 then alert -+.Ve -+.PP -+In this example we use udp for connection testing to check if the -+name-server is running and also use timeout and alert: -+.PP -+.Vb 5 -+\& check process named with pidfile /var/run/named.pid -+\& start program = "/etc/init.d/named start" -+\& stop program = "/etc/init.d/named stop" -+\& if failed port 53 use type udp protocol dns then restart -+\& if 3 restarts within 5 cycles then timeout -+.Ve -+.PP -+The following example illustrate how to check if the service -+\&'sophie' is answering connections on its Unix domain socket: -+.PP -+.Vb 4 -+\& check process sophie with pidfile /var/run/sophie.pid -+\& start program = "/etc/init.d/sophie start" -+\& stop program = "/etc/init.d/sophie stop" -+\& if failed unix /var/run/sophie then restart -+.Ve -+.PP -+In this example we check an apache web-server running on -+localhost that answers for several IP-based virtual hosts or -+vhosts, hence the host statement before port: -+.PP -+.Vb 7 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start "/etc/init.d/httpd start" -+\& stop "/etc/init.d/httpd stop" -+\& if failed host www.sol.no port 80 then alert -+\& if failed host shop.sol.no port 443 then alert -+\& if failed host chat.sol.no port 80 then alert -+\& if failed host www.tildeslash.com port 80 then alert -+.Ve -+.PP -+To make sure that monit is communicating with a http server a -+protocol test can be added: -+.PP -+.Vb 6 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start "/etc/init.d/httpd start" -+\& stop "/etc/init.d/httpd stop" -+\& if failed host www.sol.no port 80 -+\& protocol HTTP -+\& then alert -+.Ve -+.PP -+This example shows a different way to check a webserver using -+the send/expect mechanism: -+.PP -+.Vb 7 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start "/etc/init.d/httpd start" -+\& stop "/etc/init.d/httpd stop" -+\& if failed host www.sol.no port 80 -+\& send "GET / HTTP/1.0\er\enHost: www.sol.no\er\en\er\en" -+\& expect "HTTP/[0\-9\e.]{3} 200 .*\er\en" -+\& then alert -+.Ve -+.PP -+To make sure that Apache is logging successfully (i.e. no more -+than 60 percent of child servers are logging), use its mod_status -+page at www.sol.no/server\-status with this special protocol test: -+.PP -+.Vb 5 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start "/etc/init.d/httpd start" -+\& stop "/etc/init.d/httpd stop" -+\& if failed host www.sol.no port 80 -+\& protocol apache\-status loglimit > 60% then restart -+.Ve -+.PP -+This configuration can be used to alert you if 25 percent or more -+of Apache child processes are stuck performing \s-1DNS\s0 lookups: -+.PP -+.Vb 5 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start "/etc/init.d/httpd start" -+\& stop "/etc/init.d/httpd stop" -+\& if failed host www.sol.no port 80 -+\& protocol apache\-status dnslimit > 25% then alert -+.Ve -+.PP -+Here we use an icmp ping test to check if a remote host is up and -+if not send an alert: -+.PP -+.Vb 3 -+\& check host www.tildeslash.com with address www.tildeslash.com -+\& if failed icmp type echo count 5 with timeout 15 seconds -+\& then alert -+.Ve -+.PP -+In the following example we ask monit to compute and verify the -+checksum for the underlying apache binary used by the start and -+stop programs. If the the checksum test should fail, monitoring -+will be disabled to prevent possibly starting a compromised -+binary: -+.PP -+.Vb 5 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if failed host www.tildeslash.com port 80 then restart -+\& depends on apache_bin -+.Ve -+.PP -+.Vb 2 -+\& check file apache_bin with path /usr/local/apache/bin/httpd -+\& if failed checksum then unmonitor -+.Ve -+.PP -+In this example we ask monit to test the checksum for a document -+on a remote server. If the checksum was changed we send an alert: -+.PP -+.Vb 7 -+\& check host tildeslash with address www.tildeslash.com -+\& if failed port 80 protocol http -+\& and request "/monit/dist/monit\-4.0.tar.gz" -+\& with checksum f9d26b8393736b5dfad837bb13780786 -+\& then alert -+\& alert hauk@tildeslash.com with mail\-format {subject: -+\& Aaaalarm! } -+.Ve -+.PP -+Some servers are slow starters, like for example Java based -+Application Servers. So if we want to keep the poll-cycle low -+(i.e. < 60 seconds) but allow some services to take its time to -+start, the \fBevery\fR statement is handy: -+.PP -+.Vb 5 -+\& check process dynamo with pidfile /etc/dynamo.pid -+\& start program = "/etc/init.d/dynamo start" -+\& stop program = "/etc/init.d/dynamo stop" -+\& if failed port 8840 then alert -+\& every 2 cycles -+.Ve -+.PP -+Here is an example where we group together two database entries -+so you can manage them together, e.g.; 'monit \-g database start -+all'. The mode statement is also illustrated in the first entry -+and have the effect that monit will not try to (re)start this -+service if it is not running: -+.PP -+.Vb 5 -+\& check process sybase with pidfile /var/run/sybase.pid -+\& start = "/etc/init.d/sybase start" -+\& stop = "/etc/init.d/sybase stop" -+\& mode passive -+\& group database -+.Ve -+.PP -+.Vb 6 -+\& check process oracle with pidfile /var/run/oracle.pid -+\& start program = "/etc/init.d/oracle start" -+\& stop program = "/etc/init.d/oracle stop" -+\& mode active # Not necessary really, since it's the default -+\& if failed port 9001 then restart -+\& group database -+.Ve -+.PP -+Here is an example to show the usage of the resource checks. It -+will send an alert when the \s-1CPU\s0 usage of the http daemon and its -+child processes raises beyond 60% for over two cycles. Apache is -+restarted if the \s-1CPU\s0 usage is over 80% for five cycles or the -+memory usage over 100Mb for five cycles or if the machines load -+average is more than 10 for 8 cycles: -+.PP -+.Vb 7 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if cpu > 60% for 2 cycles then alert -+\& if cpu > 80% for 5 cycles then restart -+\& if mem > 100 MB for 5 cycles then stop -+\& if loadavg(5min) greater than 10.0 for 8 cycles then stop -+.Ve -+.PP -+This examples demonstrate the timestamp statement with exec and -+how you may restart apache if its configuration file was -+changed. -+.PP -+.Vb 3 -+\& check file httpd.conf with path /etc/httpd/httpd.conf -+\& if changed timestamp -+\& then exec "/etc/init.d/httpd graceful" -+.Ve -+.PP -+In this example we demonstrate usage of the extended alert -+statement and a file check dependency: -+.PP -+.Vb 15 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start = "/etc/init.d/httpd start" -+\& stop = "/etc/init.d/httpd stop" -+\& if failed host www.tildeslash.com port 80 then restart -+\& alert admin@bar on {nonexist, timeout} -+\& with mail\-format { -+\& from: bofh@$HOST -+\& subject: apache $EVENT \- $ACTION -+\& message: This event occurred on $HOST at $DATE. -+\& Your faithful employee, -+\& monit -+\& } -+\& if 3 restarts within 5 cycles then timeout -+\& depend httpd_bin -+\& group apache -+.Ve -+.PP -+.Vb 12 -+\& check file httpd_bin with path /usr/local/apache/bin/httpd -+\& if failed checksum -+\& and expect 8f7f419955cefa0b33a2ba316cba3659 -+\& then unmonitor -+\& if failed permission 755 then unmonitor -+\& if failed uid root then unmonitor -+\& if failed gid root then unmonitor -+\& if changed timestamp then alert -+\& alert security@bar on {checksum, timestamp, -+\& permission, uid, gid} -+\& with mail\-format {subject: Alaaarrm! on $HOST} -+\& group apache -+.Ve -+.PP -+In this example, we demonstrate usage of the depend statement. In -+this case, we want to start oracle and apache. However, we've set -+up apache to use oracle as a back end, and if oracle is -+restarted, apache must be restarted as well. -+.PP -+.Vb 4 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start = "/etc/init.d/httpd start" -+\& stop = "/etc/init.d/httpd stop" -+\& depends on oracle -+.Ve -+.PP -+.Vb 4 -+\& check process oracle with pidfile /var/run/oracle.pid -+\& start = "/etc/init.d/oracle start" -+\& stop = "/etc/init.d/oracle stop" -+\& if failed port 9001 then restart -+.Ve -+.PP -+Next, we have 2 services, oracle-import and oracle-export that -+need to be restarted if oracle is restarted, but are independent -+of each other. -+.PP -+.Vb 4 -+\& check process oracle with pidfile /var/run/oracle.pid -+\& start = "/etc/init.d/oracle start" -+\& stop = "/etc/init.d/oracle stop" -+\& if failed port 9001 then restart -+.Ve -+.PP -+.Vb 5 -+\& check process oracle\-import -+\& with pidfile /var/run/oracle\-import.pid -+\& start = "/etc/init.d/oracle\-import start" -+\& stop = "/etc/init.d/oracle\-import stop" -+\& depends on oracle -+.Ve -+.PP -+.Vb 5 -+\& check process oracle\-export -+\& with pidfile /var/run/oracle\-export.pid -+\& start = "/etc/init.d/oracle\-export start" -+\& stop = "/etc/init.d/oracle\-export stop" -+\& depends on oracle -+.Ve -+.PP -+Finally an example with all statements: -+.PP -+.Vb 23 -+\& check process apache with pidfile /var/run/httpd.pid -+\& start program = "/etc/init.d/httpd start" -+\& stop program = "/etc/init.d/httpd stop" -+\& if 3 restarts within 5 cycles then timeout -+\& if failed host www.sol.no port 80 protocol http -+\& and use the request "/login.cgi" -+\& then alert -+\& if failed host shop.sol.no port 443 type tcpssl -+\& protocol http and with timeout 15 seconds -+\& then restart -+\& if cpu is greater than 60% for 2 cycles then alert -+\& if cpu > 80% for 5 cycles then restart -+\& if totalmem > 100 MB then stop -+\& if children > 200 then alert -+\& alert bofh@bar with mail\-format {from: monit@foo.bar.no} -+\& every 2 cycles -+\& mode active -+\& depends on weblogic -+\& depends on httpd.pid -+\& depends on httpd.conf -+\& depends on httpd_bin -+\& depends on datafs -+\& group server -+.Ve -+.PP -+.Vb 6 -+\& check file httpd.pid with path /usr/local/apache/logs/httpd.pid -+\& group server -+\& if timestamp > 7 days then restart -+\& every 2 cycles -+\& alert bofh@bar with mail\-format {from: monit@foo.bar.no} -+\& depends on datafs -+.Ve -+.PP -+.Vb 7 -+\& check file httpd.conf with path /etc/httpd/httpd.conf -+\& group server -+\& if timestamp was changed -+\& then exec "/usr/local/apache/bin/apachectl graceful" -+\& every 2 cycles -+\& alert bofh@bar with mail\-format {from: monit@foo.bar.no} -+\& depends on datafs -+.Ve -+.PP -+.Vb 13 -+\& check file httpd_bin with path /usr/local/apache/bin/httpd -+\& group server -+\& if failed checksum and expect the sum -+\& 8f7f419955cefa0b33a2ba316cba3659 then unmonitor -+\& if failed permission 755 then unmonitor -+\& if failed uid root then unmonitor -+\& if failed gid root then unmonitor -+\& if changed size then alert -+\& if changed timestamp then alert -+\& every 2 cycles -+\& alert bofh@bar with mail\-format {from: monit@foo.bar.no} -+\& alert foo@bar on { checksum, size, timestamp, uid, gid } -+\& depends on datafs -+.Ve -+.PP -+.Vb 12 -+\& check device datafs with path /dev/sdb1 -+\& group server -+\& start program = "/bin/mount /data" -+\& stop program = "/bin/umount /data" -+\& if failed permission 660 then unmonitor -+\& if failed uid root then unmonitor -+\& if failed gid disk then unmonitor -+\& if space usage > 80 % then alert -+\& if space usage > 94 % then stop -+\& if inode usage > 80 % then alert -+\& if inode usage > 94 % then stop -+\& alert root@localhost -+.Ve -+.PP -+.Vb 7 -+\& check host ftp.redhat.com with address ftp.redhat.com -+\& if failed icmp type echo with timeout 15 seconds -+\& then alert -+\& if failed port 21 protocol ftp -+\& then exec "/usr/X11R6/bin/xmessage \-display -+\& :0 ftp connection failed" -+\& alert foo@bar.com -+.Ve -+.PP -+.Vb 7 -+\& check host www.gnu.org with address www.gnu.org -+\& if failed port 80 protocol http -+\& and request "/pub/gnu/bash/bash\-2.05b.tar.gz" -+\& with checksum 8f7f419955cefa0b33a2ba316cba3659 -+\& then alert -+\& alert rms@gnu.org with mail\-format { -+\& subject: The gnu server may be hacked again! } -+.Ve -+.PP -+Note; only the \fBcheck type\fR, \fBpidfile/path/address\fR statements -+are mandatory, the other statements are optional and the order of -+the optional statements is not important. -+.SH "MONIT WITH HEARTBEAT" -+.IX Header "MONIT WITH HEARTBEAT" -+You can download \fIheartbeat\fR from -+http://www.linux\-ha.org/download/. It might be useful to have a -+look at The Heartbeat Getting Started Guide at: -+http://www.linux\-ha.org/GettingStarted.html -+.PP -+\&\fBStarting up a Node\fR -+.PP -+This is the normal start sequence for a cluster\-node. With this -+sequence, there should be no error\-case, which is not handled -+either by heartbeat or by monit. For example, if monit dies, -+initd restarts it. If heartbeat dies, monit restarts it. If the -+node dies, the heartbeat instance on the other node detects it -+and restart the services there. -+.IP "1. initd starts monit with group local" 4 -+.IX Item "1. initd starts monit with group local" -+.PD 0 -+.IP "2. monit starts heartbeat in local group" 4 -+.IX Item "2. monit starts heartbeat in local group" -+.IP "3. heartbeat requests monit to start the node group" 4 -+.IX Item "3. heartbeat requests monit to start the node group" -+.IP "4. monit starts the node group" 4 -+.IX Item "4. monit starts the node group" -+.PD -+.PP -+\&\fBMonit: \f(BI/etc/monitrc\fB\fR -+.PP -+This example describes a cluster with 2 nodes. Services running -+on Node 1 are in the group \fInode1\fR and Node 2 services are in -+the \fInode2\fR group. -+.PP -+The local group entries are mode \fIactive\fR, the node group -+entries are mode \fImanual\fR and controlled by heartbeat. -+.PP -+.Vb 3 -+\& # -+\& # local services on both hosts -+\& # -+.Ve -+.PP -+.Vb 6 -+\& check process heartbeat with pidfile /var/run/heartbeat.pid -+\& start program = "/etc/init.d/heartbeat start" -+\& stop program = "/etc/init.d/heartbeat start" -+\& mode active -+\& alert foo@bar -+\& group local -+.Ve -+.PP -+.Vb 6 -+\& check process postfix with pidfile /var/run/postfix/master.pid -+\& start program = "/etc/init.d/postfix start" -+\& stop program = "/etc/init.d/postfix stop" -+\& mode active -+\& alert foo@bar -+\& group local -+.Ve -+.PP -+.Vb 3 -+\& # -+\& # node1 services -+\& # -+.Ve -+.PP -+.Vb 7 -+\& check process apache with pidfile /var/apache/logs/httpd.pid -+\& start program = "/etc/init.d/apache start" -+\& stop program = "/etc/init.d/apache stop" -+\& depends named -+\& alert foo@bar -+\& mode manual -+\& group node1 -+.Ve -+.PP -+.Vb 6 -+\& check process named with pidfile /var/tmp/named.pid -+\& start program = "/etc/init.d/named start" -+\& stop program = "/etc/init.d/named stop" -+\& alert foo@bar -+\& mode manual -+\& group node1 -+.Ve -+.PP -+.Vb 3 -+\& # -+\& # node2 services -+\& # -+.Ve -+.PP -+.Vb 6 -+\& check process named\-slave with pidfile /var/tmp/named\-slave.pid -+\& start program = "/etc/init.d/named\-slave start" -+\& stop program = "/etc/init.d/named\-slave stop" -+\& mode manual -+\& alert foo@bar -+\& group node2 -+.Ve -+.PP -+.Vb 7 -+\& check process squid with pidfile /var/squid/logs/squid.pid -+\& start program = "/etc/init.d/squid start" -+\& stop program = "/etc/init.d/squid stop" -+\& depends named\-slave -+\& alert foo@bar -+\& mode manual -+\& group node2 -+.Ve -+.PP -+\&\fBinitd: \f(BI/etc/inittab\fB\fR -+.PP -+Monit is started on both nodes with initd. You will need to add -+an entry in \fI/etc/inittab\fR to start monit with the same local -+group heartbeat is member of. -+.PP -+.Vb 2 -+\& #/etc/inittab -+\& mo:2345:respawn:/usr/local/bin/monit \-d 10 \-c /etc/monitrc \-g local -+.Ve -+.PP -+\&\fBheartbeat: \f(BI/etc/ha.d/haresources\fB\fR -+.PP -+When heartbeat starts, heartbeat looks up the node entry and -+start the script \fI/etc/init.d/monit\-node1\fR or -+\&\fI/etc/init.d/monit\-node2\fR. The script calls monit to start the -+specific group per node. -+.PP -+.Vb 3 -+\& # /etc/ha.d/haresources -+\& node1 IPaddr::172.16.100.1 monit\-node1 -+\& node2 IPaddr::172.16.100.2 monit\-node2 -+.Ve -+.PP -+\&\fB\f(BI/etc/init.d/monit\-node1\fB\fR -+.PP -+.Vb 11 -+\& #!/bin/bash -+\& # -+\& # sample script for starting/stopping all services on node1 -+\& # -+\& prog="/usr/local/bin/monit \-g node1" -+\& start() -+\& { -+\& echo \-n $"Starting $prog:" -+\& $prog start all -+\& echo -+\& } -+.Ve -+.PP -+.Vb 6 -+\& stop() -+\& { -+\& echo \-n $"Stopping $prog:" -+\& $prog stop all -+\& echo -+\& } -+.Ve -+.PP -+.Vb 10 -+\& case "$1" in -+\& start) -+\& start;; -+\& stop) -+\& stop;; -+\& *) -+\& echo $"Usage: $0 {start|stop}" -+\& RETVAL=1 -+\& esac -+\& exit $RETVAL -+.Ve -+.Sh "Handling state" -+.IX Subsection "Handling state" -+As mentioned elsewhere, monit save its state to a state file. If -+the monit process should die, upon restart monit will read its -+last known state from this file. This can be a problem if monit -+is used in a cluster, as illustrate in this scenario: -+.IP "1" 4 -+.IX Item "1" -+The active node fails, the second takes over -+.IP "2" 4 -+.IX Item "2" -+After a reboot, the failed node comes back, monit read its state -+file and start all the services (even manual ones) as they were -+running before the failure. This is a problem because services -+will now run on both nodes. -+.PP -+The solution to this problem is to remove the monit.state file in -+a rc-script called at boot time and before monit is started. -+.SH "FILES" -+.IX Header "FILES" -+\&\fI~/.monitrc\fR -+ Default run control file -+.PP -+\&\fI/etc/monitrc\fR -+ If the control file is not found in the default -+ location and /etc contains a \fImonitrc\fR file, this -+ file will be used instead. -+.PP -+\&\fI./monitrc\fR -+ If the control file is not found in either of the -+ previous two locations, and the current working -+ directory contains a \fImonitrc\fR file, this file is -+ used instead. -+.PP -+\&\fI~/.monitrc.pid\fR -+ Lock file to help prevent concurrent runs (non\-root -+ mode). -+.PP -+\&\fI/var/run/monit.pid\fR -+ Lock file to help prevent concurrent runs (root mode, -+ Linux systems). -+.PP -+\&\fI/etc/monit.pid\fR -+ Lock file to help prevent concurrent runs (root mode, -+ systems without /var/run). -+.PP -+\&\fI~/.monit.state\fR -+ monit save its state to this file and utilize -+ information found in this file to recover from -+ a crash. This is a binary file and its content is -+ only of interest to monit. You may set the location -+ of this file in the monit control file or by using -+ the \-s switch when monit is started. -+.SH "ENVIRONMENT" -+.IX Header "ENVIRONMENT" -+No environment variables are used by monit. However, when monit -+execute a script or a program monit will set several environment -+variables which can be utilized by the executable. The following -+and \fIonly\fR the following environment variables are available: -+.IP "\s-1MONIT_EVENT\s0" 4 -+.IX Item "MONIT_EVENT" -+The event that occurred on the service -+.IP "\s-1MONIT_SERVICE\s0" 4 -+.IX Item "MONIT_SERVICE" -+The name of the service (from monitrc) on which the event -+occurred. -+.IP "\s-1MONIT_DATE\s0" 4 -+.IX Item "MONIT_DATE" -+The time and date (rfc 822 style) the event occurred -+.IP "\s-1MONIT_HOST\s0" 4 -+.IX Item "MONIT_HOST" -+The host the event occurred on -+.PP -+The following environment variables are only available for -+process service entries: -+.IP "\s-1MONIT_PROCESS_PID\s0" 4 -+.IX Item "MONIT_PROCESS_PID" -+The process pid. This may be 0 if the process was (re)started, -+.IP "\s-1MONIT_PROCESS_MEMORY\s0" 4 -+.IX Item "MONIT_PROCESS_MEMORY" -+Process memory. This may be 0 if the process was (re)started, -+.IP "\s-1MONIT_PROCESS_CHILDREN\s0" 4 -+.IX Item "MONIT_PROCESS_CHILDREN" -+Process children. This may be 0 if the process was (re)started, -+.IP "\s-1MONIT_PROCESS_CPU_PERCENT\s0" 4 -+.IX Item "MONIT_PROCESS_CPU_PERCENT" -+Process cpu%. This may be 0 if the process was (re)started, -+.PP -+In addition the following spartan \s-1PATH\s0 environment variable is -+available: -+.IP "PATH=/bin:/usr/bin:/sbin:/usr/sbin" 4 -+.IX Item "PATH=/bin:/usr/bin:/sbin:/usr/sbin" -+.PP -+Scripts or programs that depends on other environment variables -+or on a more verbose \s-1PATH\s0 must provide means to set these -+variables by them self. -+.SH "SIGNALS" -+.IX Header "SIGNALS" -+If a monit daemon is running, \s-1SIGUSR1\s0 wakes it up from its sleep -+phase and forces a poll of all services. \s-1SIGTERM\s0 and \s-1SIGINT\s0 will -+gracefully terminate a monit daemon. The \s-1SIGTERM\s0 signal is sent -+to a monit daemon if monit is started with the \fIquit\fR action -+argument. -+.PP -+Sending a \s-1SIGHUP\s0 signal to a running monit daemon will force -+the daemon to reinitialize itself, specifically it will reread -+configuration, close and reopen log files. -+.PP -+Running monit in foreground while a background monit daemon is -+running will wake up the daemon. -+.SH "NOTES" -+.IX Header "NOTES" -+This is a very silent program. Use the \-v switch if you want to -+see what monit is doing, and tail \-f the logfile. Optionally for -+testing purposes; you can start monit with the \-Iv switch. Monit -+will then print debug information to the console, to stop monit -+in this mode, simply press CTRL^C (i.e. \s-1SIGINT\s0) in the same -+console. -+.PP -+The syntax (and parser) of the control file is inspired by Eric -+S. Raymond et al. excellent fetchmail program. Some portions of -+this man page does also receive inspiration from the same -+authors. -+.SH "AUTHORS" -+.IX Header "AUTHORS" -+Jan-Henrik Haukeland <hauk@tildeslash.com>, -+Martin Pala <martinp@tildeslash.com>, -+Christian Hopp <chopp@iei.tu\-clausthal.de>, -+Rory Toma <rory@digeo.com> -+.PP -+See also http://www.tildeslash.com/monit/who.html -+.SH "COPYRIGHT" -+.IX Header "COPYRIGHT" -+Copyright (C) 2000\-2007 by the monit project group. All Rights -+Reserved. This product is distributed in the hope that it will be -+useful, but \s-1WITHOUT\s0 any warranty; without even the implied -+warranty of \s-1MERCHANTABILITY\s0 or \s-1FITNESS\s0 for a particular purpose. -+.SH "SEE ALSO" -+.IX Header "SEE ALSO" -+\&\s-1GNU\s0 text utilities; \fImd5sum\fR\|(1); \fIsha1sum\fR\|(1); \fIopenssl\fR\|(1); \fIglob\fR\|(7); -+\&\fIregex\fR\|(7) diff --git a/sysutils/monit/patches/patch-af b/sysutils/monit/patches/patch-af deleted file mode 100644 index d6b3b32a82e..00000000000 --- a/sysutils/monit/patches/patch-af +++ /dev/null @@ -1,16 +0,0 @@ -$NetBSD: patch-af,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -fixes crash on NetBSD due to usage of already destroyed mutex. -See also http://cvs.savannah.gnu.org/viewcvs/monit/log.c?rev=1.33&root=monit&r1=1.33&view=log - ---- log.c.orig 2007-01-03 22:02:06.000000000 +0100 -+++ log.c -@@ -277,7 +277,7 @@ void log_close() { - LogError("%s: Error closing the log file -- %s\n", - prog, STRERROR); - } -- pthread_mutex_destroy(&log_mutex); -+ - LOG= NULL; - - } diff --git a/sysutils/monit/patches/patch-ag b/sysutils/monit/patches/patch-ag deleted file mode 100644 index 21bfebf0a75..00000000000 --- a/sysutils/monit/patches/patch-ag +++ /dev/null @@ -1,15 +0,0 @@ -$NetBSD: patch-ag,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -Substitute variables in monit.1.in - ---- configure.ac.orig 2007-02-19 23:39:58.000000000 +0100 -+++ configure.ac -@@ -698,7 +698,7 @@ fi - # ------------------------------------------------------------------------ - - AC_CONFIG_HEADER([config.h]) --AC_CONFIG_FILES([Makefile]) -+AC_CONFIG_FILES([Makefile monit.1]) - AC_OUTPUT - - echo "" diff --git a/sysutils/monit/patches/patch-ah b/sysutils/monit/patches/patch-ah deleted file mode 100644 index e0c4db27379..00000000000 --- a/sysutils/monit/patches/patch-ah +++ /dev/null @@ -1,23 +0,0 @@ -$NetBSD: patch-ah,v 1.1.1.1 2007/04/30 20:53:54 heinz Exp $ - -Generated from configure.ac - ---- configure.orig 2007-02-19 23:43:14.000000000 +0100 -+++ configure -@@ -10797,7 +10797,7 @@ fi - - ac_config_headers="$ac_config_headers config.h" - --ac_config_files="$ac_config_files Makefile" -+ac_config_files="$ac_config_files Makefile monit.1" - - cat >confcache <<\_ACEOF - # This file is a shell script that caches the results of configure -@@ -11354,6 +11354,7 @@ do - case $ac_config_target in - "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; - "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; -+ "monit.1") CONFIG_FILES="$CONFIG_FILES monit.1" ;; - - *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5 - echo "$as_me: error: invalid argument: $ac_config_target" >&2;} |