radwho(1) [centos man page]
RADWHO(1) FreeRADIUS Daemon RADWHO(1) 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 /etc/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 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 10.0.0.1 -u user -P 10 | radclient -f - radius.example.net acct testing123 Other combinations are also possible. SEE ALSO
radiusd(8), radclient(1), radiusd.conf(5). AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl. 17 Feb 2013 RADWHO(1)
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RADCLIENT(1) FreeRADIUS Daemon RADCLIENT(1) NAME
radclient - send packets to a RADIUS server, show reply SYNOPSIS
radclient [-4] [-6] [-d raddb_directory] [-c count] [-f file] [-F] [-h] [-i id] [-n num_requests_per_second] [-p num_requests_in_parallel] [-q] [-r num_retries] [-s] [-S shared_secret_file] [-t timeout] [-v] [-x] server {acct|auth|status|disconnect|auto} secret DESCRIPTION
radclient is a radius client program. It can send arbitrary radius packets to a radius server, then shows the reply. It can be used to test changes you made in the configuration of the radius server, or it can be used to monitor if a radius server is up. radclient reads radius attribute/value pairs from it standard input, or from a file specified on the command line. It then encodes these attribute/value pairs using the dictionary, and sends them to the remote server. The User-Password and CHAP-Password attributes are automatically encrypted before the packet is sent to the server. OPTIONS
-4 Use IPv4 (default) -6 Use IPv6 -c count Send each packet count times. -d raddb_directory The directory that contains the RADIUS dictionary files. Defaults to /etc/raddb. -f file File to read the attribute/value pairs from. If this is not specified, they are read from stdin. This option can be specified mul- tiple times, in which case packets are sent in order by file, and within each file, by first packet to last packet. A blank line separates logical packets within a file. -F Print the file name, packet number and reply code. -h Print usage help information. -i id Use id as the RADIUS request Id. -n num_requests_per_second Try to send num_requests_per_second, evenly spaced. This option allows you to slow down the rate at which radclient sends requests. When not using -n, the default is to send packets as quickly as possible, with no inter-packet delays. Due to limitations in radclient, this option does not accurately send the requested number of packets per second. -p num_requests_in_parallel Send num_requests_in_parallel, without waiting for a response for each one. By default, radclient sends the first request it has read, waits for the response, and once the response is received, sends the second request in its list. This option allows you to send many requests at simultaneously. Once num_requests_in_parallel are sent, radclient waits for all of the responses to arrive (or for the requests to time out), before sending any more packets. This option permits you to discover the maximum load accepted by a RADIUS server. -q Go to quiet mode, and do not print out anything. -r num_retries Try to send each packet num_retries times, before giving up on it. The default is 10. -s Print out some summaries of packets sent and received. -S shared_secret_file Rather than reading the shared secret from the command-line (where it can be seen by others on the local system), read it instead from shared_secret_file. -t timeout Wait timeout seconds before deciding that the NAS has not responded to a request, and re-sending the packet. The default timeout is 3. -v Print out version information. -x Print out debugging information. server[:port] The hostname or IP address of the remote server. Optionally a UDP port can be specified. If no UDP port is specified, it is looked up in /etc/services. The service name looked for is radacct for accounting packets, and radius for all other requests. If a service is not found in /etc/services, 1813 and 1812 are used respectively. The RADIUS attributes read by radclient can contain the special attribute Packet-Dst-IP-Address. If this attribute exists, then that IP address is where the packet is sent, and the server specified on the command-line is ignored. If the RADIUS attribute list always contains the Packet-Dst-IP-Address attribute, then the server parameter can be given as -. The RADIUS attributes read by radclient can contain the special attribute Packet-Dst-Port. If this attribute exists, then that UDP port is where the packet is sent, and the :port specified on the command-line is ignored. acct | auth | status | disconnect | auto Use auth to send an authentication packet (Access-Request), acct to send an accounting packet (Accounting-Request), status to send an status packet (Status-Server), or disconnect to send a disconnection request. Instead of these values, you can also use a decimal code here. For example, code 12 is also Status-Server. The RADIUS attributes read by radclient can contain the special attribute Packet-Type. If this attribute exists, then that type of packet is sent, and the type specified on the command-line is ignored. If the RADIUS attribute list always contains the Packet-Type attribute, then the type parameter can be given as auto. secret The shared secret for this client. It needs to be defined on the radius server side too, for the IP address you are sending the radius packets from. EXAMPLE
A sample session that queries the remote server for Status-Server (not all servers support this, but FreeRADIUS has configurable support for it). $ echo "Message-Authenticator = 0x00" | radclient 192.168.1.42 status s3cr3t Sending request to server 192.168.1.42, port 1812. radrecv: Packet from host 192.168.1.42 code=2, id=140, length=54 Reply-Message = "FreeRADIUS up 21 days, 02:05" SEE ALSO
radiusd(8), AUTHORS
Miquel van Smoorenburg, miquels@cistron.nl. Alan DeKok <aland@freeradius.org> 2 April 2009 RADCLIENT(1)