+@item purge
+Purges all information remembered about unreachable nodes.
+
+@item debug @var{level}
+Sets debug level to @var{level}.
+
+@item retry
+Forces tinc to try to connect to all uplinks immediately.
+Usually tinc attempts to do this itself,
+but increases the time it waits between the attempts each time it failed,
+and if tinc didn't succeed to connect to an uplink the first time after it started,
+it defaults to the maximum time of 15 minutes.
+