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+This is derived from version 6.1 of Rdist from USC. It is based on
+rdist from 4.3BSD (classic). It includes all fixes for all bugs known
+to the CSRG Berkeley folks. It has been running at USC and numerous
+other sites for some time now on a wide variety of platforms.
+
+This version of rdist is not directly compatible with rdist
+distributed with 4.3BSD and subsequent vendor releases, but does
+indirectly provide full backward compatibility. See COMPATIBILITY
+below for details.
+
+This version of rdist does not need to be setuid "root" at all. Rdist
+now uses the rsh(1c) [remote command] program to make connections to
+remote hosts, instead of making the connection directly. This
+eliminates the need to be run as "root". Many thanks to Chris
+Siebenmann <cks@utcc.utoronto.ca> and John DiMarco
+<jdd@cdf.toronto.edu> who came up with an rsh version of rcmd() that
+makes this possible.