+.SH SIGNALS
+.TP
+.B SIGHUP
+Reload the config from disk and re-open log file.
+.TP
+.BR SIGTERM ", " SIGINT
+Stop process. Tunnels and sessions are not terminated. This signal
+should be used to stop l2tpns on a cluster node where there are other
+machines to continue handling traffic.
+.TP
+.B SIGQUIT
+Shut down tunnels and sessions, exit process when complete.