+You may also establish a daemon connection using a program as a proxy by
+setting the environment variable RSYNC_CONNECT_PROG to the commands you
+wish to run in place of making a direct socket connection. The string may
+contain the escape "%H" to represent the hostname specified in the rsync
+command (so use "%%" if you need a single "%" in your string). For
+example:
+
+verb( export RSYNC_CONNECT_PROG='ssh proxyhost nc %H 873'
+ rsync -av targethost1::module/src/ /dest/
+ rsync -av rsync:://targethost2/module/src/ /dest/ )
+
+The command specifed above uses ssh to run nc (netcat) on a proxyhost,
+which forwards all data to port 873 (the rsync daemon) on the targethost
+(%H).
+