NAME

radwho - show online users

SYNOPSIS

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]

DESCRIPTION

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.

OPTIONS

-c

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

-d raddb_directory

The directory that contains the RADIUS configuration files. Defaults to /usr/local/share/examples/freeradius/raddb.

-F radutmp_file

The file that contains the radutmp file. If this is specified, -d is not necessary.

-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-separated.

-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 session.

-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 radutmp.

For example,

$ radwho -ZRN 10.0.0.1 | radclient -f - radius.example.net acct testing123

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

$ radwho -ZRN 10.0.0.1 -u user -P 10 | radclient -f - radius.example.net acct testing123

SEE ALSO

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

AUTHOR

Miquel van Smoorenburg, miquels@cistron.nl.