+In known_hosts mode, rhesus takes an auth_host_ids file, which
+contains gpg user ids of the form ssh://URL, uses gpg to fetch the
+keys of the specified hosts, does a monkeysphere policy check on each
+id, and uses gpg2ssh to generate a known_hosts lines for each verified
+id. The lines are then combined with a user's traditional known_hosts
+file to create a new known_hosts file.
+
+When run as a normal user, no special configuration is needed.
+
+When run as an administrator to update system-maintained
+authorized_keys files for each user, the following environment
+variables should be defined first:
+
+ MS_CONF=/etc/monkeysphere/monkeysphere.conf
+ USER=foo
+
+For example, the command might be run like this:
+
+ for USER in $(ls -1 /home) ; do
+ MS_CONF=/etc/monkeysphere/monkeysphere.conf rhesus --authorized_keys
+ done