radutmped is a utility that can remove utmp
entries from the radutmp files of several RADIUS
servers. It directly manipulates the radutmp file
and does not use radzap or any other programs.
FreeRADIUS, Cistron Radius Server, and GNU Radius
radutmp formats are supported. Three search modes
are available: radutmped can match entries in
radutmp by login (User-Name), nas_port (NAS-Port),
or session_id (Acct-Session-Id).