.br
.B "clean"
.br
+.B "check"
+.br
.BR "mtu " [ \fIpath-mtu ]
.
.\"--------------------------------------------------------------------------
.B .old
files.
.TP
+.B check
+Checks the various keyrings. Currently, it checks the
+.B master
+and
+.B keyring.pub
+files, and prints a report warning of keys which will expire soon. It
+is expected that this command be run against the master repository by
+.BR cron (8).
+Additional checking may added in the future.
+.TP
.BR "mtu " [ \fIpath-mtu ]
Write, as a decimal number on standard output, the recommended MTU for a
TrIPE tunnel interface, given that the