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Diffstat (limited to 'net/tcptraceroute/DESCR')
| -rw-r--r-- | net/tcptraceroute/DESCR | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/tcptraceroute/DESCR b/net/tcptraceroute/DESCR new file mode 100644 index 00000000000..3fb4de3b326 --- /dev/null +++ b/net/tcptraceroute/DESCR @@ -0,0 +1,8 @@ +The widespread use of firewalls on the modern Internet, many of the +packets that traceroute(8) sends out end up being filtered, making it +impossible to completely trace the path to the destination. However, +in many cases, these firewalls will permit inbound TCP packets to +specific ports that hosts sitting behind the firewall are listening for +connections on. By sending out TCP SYN packets instead of UDP or ICMP +ECHO packets, tcptraceroute is able to bypass the most common firewall +filters. |