+
+knock A script which acts as an OpenSSH forced command or login shell for a
+ `tripe' user, estabishing dynamic assocations on demand.
+
+sshsvc.conf
+ A configuration script for sshsvc-mkauthkeys(1) (part of the
+ `distorted-utils' collection), for setting up an appropriate
+ `.ssh/authorized_keys' file to use the `knock' script.