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RADWHO(1)				FreeRADIUS Daemon				RADWHO(1)

       radwho - show online users

       radwho  [-c] [-d raddb_directory] [-F radutmp_file] [-i] [-n] [-N nas_ip_address] [-p] [-P
       nas_port] [-r] [-R] [-s] [-S] [-u user] [-U user] [-Z]

       The FreeRADIUS server can be configured to maintain an active session database in  a  file
       called radutmp. This utility shows the content of that session database.

       -c     Shows caller ID (if available) instead of the full name.

       -d raddb_directory
	      The directory that contains the RADIUS configuration files. Defaults to /etc/raddb.

       -F radutmp_file
	      The  file  that  contains the radutmp file.  If this is specified, -d is not neces-

       -i     Shows the session ID instead of the full name.

       -n     Normally radwho looks up the username in the systems password file, and  shows  the
	      full username as well. The -n flags prevents this.

       -N nas_ip_address
	      Show only those entries which match the given NAS IP address.

       -p     Adds an extra column for the port type - I for ISDN, A for Analog.

       -P nas_port
	      Show only those entries which match the given NAS port.

       -r     Outputs  all data in raw format - no headers, no formatting, fields are comma-sepa-

       -R     Output all data in RADIUS attribute format.  All fields are printed.

       -s     Show full name.

       -S     Hide shell users. Doesn't show the entries for users that do not have a SLIP or PPP

       -u user
	      Show only those entries which match the given username (case insensitive).

       -U user
	      Show only those entries which match the given username (case sensitive).

       -Z     When  combined  with  -R,  prints  out the contents of an Accounting-Request packet
	      which can be passed to radclient,  in  order  to	"zap"  that  users  session  from

       For example,

	      $ radwho -ZRN | radclient -f - radius.example.net acct testing123

       will  result  in  all  an Accounting-Request packet being sent to the RADIUS server, which
       tells the server that the NAS rebooted.	i.e. It "zaps" all of the users on that NAS.

       To "zap" one user, specifiy NAS, username, and NAS port:

	      $ radwho -ZRN -u user -P 10 | radclient -f - radius.example.net acct testing123

       Other combinations are also possible.

       radiusd(8), radclient(1), radiusd.conf(5).

       Miquel van Smoorenburg, miquels@cistron.nl.

					   17 Feb 2013					RADWHO(1)
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