aland wrote:

jasoneswan wrote:

...

Has anyone gotten dynamic-clients working with freeradius yet? I'm trying to accept clients from ANY IP, then looks up the IP in sql 'nas' table to see if it exists

Dynamic clients have been tested, yes.

Can you post *specific* examples of what you're doing, why you think that should work, and what is going wrong?

Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

Hey alan, thank you for taking the time to reply... I'm using sites-available/dynamic-clients config... client dynamic { ipaddr = 0.0.0.0 netmask = 0 dynamic_clients = dynamic_client_server } server dynamic_client_server { authorize { if ("%{sql: SELECT nasname FROM nas WHERE nasname = '%{Packet-Src-IP-Address}'}") { update control { FreeRADIUS-Client-Shortname = "%{sql: SELECT shortname FROM nas WHERE nasname = '%{Packet-Src-IP-Address}'}" FreeRADIUS-Client-Secret = "%{sql: SELECT secret FROM nas WHERE nasname = '%{Packet-Src-IP-Address}'}" FreeRADIUS-Client-NAS-Type = "%{sql: SELECT type FROM nas WHERE nasname = '%{Packet-Src-IP-Address}'}" } } ok } } What is happening is when a client connects it doesn't even check database it simply says "unknown client" -- View this message in context: http://www.nabble.com/Dynamic-Clients-with-FreeRADIUS-tp19384912p19386279.ht... Sent from the FreeRadius - User mailing list archive at Nabble.com.

aland wrote:

jasoneswan wrote:

...

I'm using sites-available/dynamic-clients config...

You posted pretty much a default configuration file. Why? It's not like I don't have access to it.

...

What is happening is when a client connects it doesn't even check database it simply says "unknown client"

And you didn't post the debugging output, as suggested in the FAQ, README, INSTALL, and daily on this list. I also asked for *specifics* of what happens, not a short summary.

Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

The key here is the ipaddr is 0.0.0.0 and netmask is 0. It SHOULD atleast send an SQL query out when any IP connects but this simply says "Ignoring request to authentication address * port 1812 from unknown client 192.168.1.7" Without actually querying the SQL to see if that address is in the list -- View this message in context: http://www.nabble.com/Dynamic-Clients-with-FreeRADIUS-tp19384912p19386429.ht... Sent from the FreeRadius - User mailing list archive at Nabble.com.

aland wrote:

jasoneswan wrote:

...

The key here is the ipaddr is 0.0.0.0 and netmask is 0. It SHOULD atleast send an SQL query out when any IP connects

If you've configured it right. Perhaps that's where the problem is?

...

but this simply says

"Ignoring request to authentication address * port 1812 from unknown client 192.168.1.7"

Without actually querying the SQL to see if that address is in the list

Really? You've only said that 3 times now.

Is there any particular reason you keep repeating yourself, rather than following instructions?

And since you've insisted on *not* following instructions, I don't think there's anything more I can do to help you. My help involves things like... instructions. Which you don't follow.

Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

FreeRADIUS Version 2.1.0, for host i686-pc-linux-gnu, built on Sep 5 2008 at 17:09:43 Copyright (C) 1999-2008 The FreeRADIUS server project and contributors. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You may redistribute copies of FreeRADIUS under the terms of the GNU General Public License v2. Starting - reading configuration files ... including configuration file /usr/local/etc/raddb/radiusd.conf including configuration file /usr/local/etc/raddb/proxy.conf including configuration file /usr/local/etc/raddb/clients.conf including files in directory /usr/local/etc/raddb/modules/ including configuration file /usr/local/etc/raddb/modules/radutmp including configuration file /usr/local/etc/raddb/modules/counter including configuration file /usr/local/etc/raddb/modules/digest including configuration file /usr/local/etc/raddb/modules/passwd including configuration file /usr/local/etc/raddb/modules/realm including configuration file /usr/local/etc/raddb/modules/detail including configuration file /usr/local/etc/raddb/modules/expr including configuration file /usr/local/etc/raddb/modules/attr_rewrite including configuration file /usr/local/etc/raddb/modules/preprocess including configuration file /usr/local/etc/raddb/modules/checkval including configuration file /usr/local/etc/raddb/modules/attr_filter including configuration file /usr/local/etc/raddb/modules/detail.log including configuration file /usr/local/etc/raddb/modules/expiration including configuration file /usr/local/etc/raddb/modules/sql_log including configuration file /usr/local/etc/raddb/modules/unix including configuration file /usr/local/etc/raddb/modules/always including configuration file /usr/local/etc/raddb/modules/logintime including configuration file /usr/local/etc/raddb/modules/mac2vlan including configuration file /usr/local/etc/raddb/modules/pap including configuration file /usr/local/etc/raddb/modules/mschap including configuration file /usr/local/etc/raddb/modules/files including configuration file /usr/local/etc/raddb/modules/etc_group including configuration file /usr/local/etc/raddb/modules/krb5 including configuration file /usr/local/etc/raddb/modules/exec including configuration file /usr/local/etc/raddb/modules/ldap including configuration file /usr/local/etc/raddb/modules/inner-eap including configuration file /usr/local/etc/raddb/modules/sradutmp including configuration file /usr/local/etc/raddb/modules/echo including configuration file /usr/local/etc/raddb/modules/mac2ip including configuration file /usr/local/etc/raddb/modules/pam including configuration file /usr/local/etc/raddb/modules/policy including configuration file /usr/local/etc/raddb/modules/detail.example.com including configuration file /usr/local/etc/raddb/modules/smbpasswd including configuration file /usr/local/etc/raddb/modules/chap including configuration file /usr/local/etc/raddb/modules/wimax including configuration file /usr/local/etc/raddb/modules/acct_unique including configuration file /usr/local/etc/raddb/modules/ippool including configuration file /usr/local/etc/raddb/modules/linelog including configuration file /usr/local/etc/raddb/eap.conf including configuration file /usr/local/etc/raddb/sql.conf including configuration file /usr/local/etc/raddb/sql/mysql/dialup.conf including configuration file /usr/local/etc/raddb/sql/mysql/counter.conf including configuration file /usr/local/etc/raddb/policy.conf including files in directory /usr/local/etc/raddb/sites-enabled/ including configuration file /usr/local/etc/raddb/sites-enabled/default including configuration file /usr/local/etc/raddb/sites-enabled/inner-tunnel including configuration file /usr/local/etc/raddb/sites-available/dynamic-clients including dictionary file /usr/local/etc/raddb/dictionary main { prefix = "/usr/local" localstatedir = "/usr/local/var" logdir = "/usr/local/var/log/radius" libdir = "/usr/local/lib" radacctdir = "/usr/local/var/log/radius/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 allow_core_dumps = no pidfile = "/usr/local/var/run/radiusd/radiusd.pid" checkrad = "/usr/local/sbin/checkrad" debug_level = 0 proxy_requests = yes log { stripped_names = no auth = no auth_badpass = no auth_goodpass = no } security { max_attributes = 200 reject_delay = 1 status_server = yes } } client dynamic { ipaddr = 0.0.0.0 netmask = 0 require_message_authenticator = no dynamic_clients = "dynamic_client_server" lifetime = 0 } radiusd: #### Loading Realms and Home Servers #### proxy server { retry_delay = 5 retry_count = 3 default_fallback = no dead_time = 120 wake_all_if_all_dead = no } home_server localhost { ipaddr = 127.0.0.1 port = 1812 type = "auth" secret = "testing123" response_window = 20 max_outstanding = 65536 zombie_period = 40 status_check = "status-server" ping_interval = 30 check_interval = 30 num_answers_to_alive = 3 num_pings_to_alive = 3 revive_interval = 120 status_check_timeout = 4 } home_server_pool my_auth_failover { type = fail-over home_server = localhost } realm example.com { auth_pool = my_auth_failover } realm LOCAL { } radiusd: #### Instantiating modules #### instantiate { Module: Linked to module rlm_exec Module: Instantiating exec exec { wait = no input_pairs = "request" shell_escape = yes } Module: Linked to module rlm_expr Module: Instantiating expr Module: Linked to module rlm_expiration Module: Instantiating expiration expiration { reply-message = "Password Has Expired " } Module: Linked to module rlm_logintime Module: Instantiating logintime logintime { reply-message = "You are calling outside your allowed timespan " minimum-timeout = 60 } } radiusd: #### Loading Virtual Servers #### server inner-tunnel { modules { Module: Checking authenticate {...} for more modules to load Module: Linked to module rlm_pap Module: Instantiating pap pap { encryption_scheme = "auto" auto_header = no } Module: Linked to module rlm_chap Module: Instantiating chap Module: Linked to module rlm_mschap Module: Instantiating mschap mschap { use_mppe = yes require_encryption = yes require_strong = yes with_ntdomain_hack = no } Module: Linked to module rlm_unix Module: Instantiating unix unix { radwtmp = "/usr/local/var/log/radius/radwtmp" } Module: Linked to module rlm_eap Module: Instantiating eap eap { default_eap_type = "peap" timer_expire = 60 ignore_unknown_eap_types = no cisco_accounting_username_bug = no max_sessions = 2048 } Module: Linked to sub-module rlm_eap_md5 Module: Instantiating eap-md5 Module: Linked to sub-module rlm_eap_leap Module: Instantiating eap-leap Module: Linked to sub-module rlm_eap_gtc Module: Instantiating eap-gtc gtc { challenge = "Password: " auth_type = "PAP" } Module: Linked to sub-module rlm_eap_tls Module: Instantiating eap-tls tls { rsa_key_exchange = no dh_key_exchange = yes rsa_key_length = 512 dh_key_length = 512 verify_depth = 0 pem_file_type = yes private_key_file = "/usr/local/etc/raddb/certs/server.pem" certificate_file = "/usr/local/etc/raddb/certs/server.pem" CA_file = "/usr/local/etc/raddb/certs/ca.pem" private_key_password = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" dh_file = "/usr/local/etc/raddb/certs/dh" random_file = "/usr/local/etc/raddb/certs/random" fragment_size = 1024 include_length = yes check_crl = no cipher_list = "DEFAULT" make_cert_command = "/usr/local/etc/raddb/certs/bootstrap" cache { enable = no lifetime = 24 max_entries = 255 } } Module: Linked to sub-module rlm_eap_ttls Module: Instantiating eap-ttls ttls { default_eap_type = "peap" copy_request_to_tunnel = no use_tunneled_reply = no virtual_server = "inner-tunnel" } Module: Linked to sub-module rlm_eap_peap Module: Instantiating eap-peap peap { default_eap_type = "mschapv2" copy_request_to_tunnel = no use_tunneled_reply = no proxy_tunneled_request_as_eap = yes } Module: Linked to sub-module rlm_eap_mschapv2 Module: Instantiating eap-mschapv2 mschapv2 { with_ntdomain_hack = no } Module: Checking authorize {...} for more modules to load Module: Linked to module rlm_realm Module: Instantiating suffix realm suffix { format = "suffix" delimiter = "@" ignore_default = no ignore_null = no } Module: Linked to module rlm_files Module: Instantiating files files { usersfile = "/usr/local/etc/raddb/users" acctusersfile = "/usr/local/etc/raddb/acct_users" preproxy_usersfile = "/usr/local/etc/raddb/preproxy_users" compat = "no" } Module: Checking session {...} for more modules to load Module: Linked to module rlm_radutmp Module: Instantiating radutmp radutmp { filename = "/usr/local/var/log/radius/radutmp" username = "%{User-Name}" case_sensitive = yes check_with_nas = yes perm = 384 callerid = yes } Module: Checking post-proxy {...} for more modules to load Module: Checking post-auth {...} for more modules to load Module: Linked to module rlm_attr_filter Module: Instantiating attr_filter.access_reject attr_filter attr_filter.access_reject { attrsfile = "/usr/local/etc/raddb/attrs.access_reject" key = "%{User-Name}" } } } server dynamic_client_server { modules { Module: Checking authorize {...} for more modules to load Module: Linked to module rlm_always Module: Instantiating ok always ok { rcode = "ok" simulcount = 0 mpp = no } } } modules { Module: Checking authenticate {...} for more modules to load Module: Checking authorize {...} for more modules to load Module: Linked to module rlm_preprocess Module: Instantiating preprocess preprocess { huntgroups = "/usr/local/etc/raddb/huntgroups" hints = "/usr/local/etc/raddb/hints" with_ascend_hack = no ascend_channels_per_line = 23 with_ntdomain_hack = no with_specialix_jetstream_hack = no with_cisco_vsa_hack = no with_alvarion_vsa_hack = no } Module: Linked to module rlm_sql Module: Instantiating sql sql { driver = "rlm_sql_mysql" server = "localhost" port = "" login = "radius" password = "XXXXXXXXXXXXXXXXXXXXXXXXX" radius_db = "radius" read_groups = yes sqltrace = yes sqltracefile = "/usr/local/var/log/radius/sqltrace.sql" readclients = no deletestalesessions = yes num_sql_socks = 5 sql_user_name = "%{User-Name}" default_user_profile = "" nas_query = "SELECT id, nasname, shortname, type, secret FROM nas" authorize_check_query = "SELECT id, username, attribute, value, op FROM radcheck WHERE username = '%{SQL-User-Name}' ORDER BY id" authorize_reply_query = "SELECT id, username, attribute, value, op FROM radreply WHERE username = '%{SQL-User-Name}' ORDER BY id" authorize_group_check_query = "SELECT id, groupname, attribute, Value, op FROM radgroupcheck WHERE groupname = '%{Sql-Group}' ORDER BY id" authorize_group_reply_query = "SELECT id, groupname, attribute, value, op FROM radgroupreply WHERE groupname = '%{Sql-Group}' ORDER BY id" accounting_onoff_query = " UPDATE radacct SET acctstoptime = '%S', acctsessiontime = unix_timestamp('%S') - unix_timestamp(acctstarttime), acctterminatecause = '%{Acct-Terminate-Cause}', acctstopdelay = %{%{Acct-Delay-Time}:-0} WHERE acctstoptime IS NULL AND nasipaddress = '%{NAS-IP-Address}' AND acctstarttime <= '%S'" accounting_update_query = " UPDATE radacct SET framedipaddress = '%{Framed-IP-Address}', acctsessiontime = '%{Acct-Session-Time}', acctinputoctets = '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}' WHERE acctsessionid = '%{Acct-Session-Id}' AND username = '%{SQL-User-Name}' AND nasipaddress = '%{NAS-IP-Address}'" accounting_update_query_alt = " INSERT INTO radacct (acctsessionid, acctuniqueid, username, realm, nasipaddress, nasportid, nasporttype, acctstarttime, acctsessiontime, acctauthentic, connectinfo_start, acctinputoctets, acctoutputoctets, calledstationid, callingstationid, servicetype, framedprotocol, framedipaddress, acctstartdelay, xascendsessionsvrkey) VALUES ('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}', '%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}', '%{NAS-Port-Type}', DATE_SUB('%S', INTERVAL (%{%{Acct-Session-Time}:-0} + %{%{Acct-Delay-Time}:-0}) SECOND), '%{Acct-Session-Time}', '%{Acct-Authentic}', '', '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}', '%{Called-Station-Id}', '%{Calling-Station-Id}', '%{Service-Type}', '%{Framed-Protocol}', '%{Framed-IP-Address}', '0', '%{X-Ascend-Session-Svr-Key}')" accounting_start_query = " INSERT INTO radacct (acctsessionid, acctuniqueid, username, realm, nasipaddress, nasportid, nasporttype, acctstarttime, acctstoptime, acctsessiontime, acctauthentic, connectinfo_start, connectinfo_stop, acctinputoctets, acctoutputoctets, calledstationid, callingstationid, acctterminatecause, servicetype, framedprotocol, framedipaddress, acctstartdelay, acctstopdelay, xascendsessionsvrkey) VALUES ('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}', '%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}', '%{NAS-Port-Type}', '%S', NULL, '0', '%{Acct-Authentic}', '%{Connect-Info}', '', '0', '0', '%{Called-Station-Id}', '%{Calling-Station-Id}', '', '%{Service-Type}', '%{Framed-Protocol}', '%{Framed-IP-Address}', '%{%{Acct-Delay-Time}:-0}', '0', '%{X-Ascend-Session-Svr-Key}')" accounting_start_query_alt = " UPDATE radacct SET acctstarttime = '%S', acctstartdelay = '%{%{Acct-Delay-Time}:-0}', connectinfo_start = '%{Connect-Info}' WHERE acctsessionid = '%{Acct-Session-Id}' AND username = '%{SQL-User-Name}' AND nasipaddress = '%{NAS-IP-Address}'" accounting_stop_query = " UPDATE radacct SET acctstoptime = '%S', acctsessiontime = '%{Acct-Session-Time}', acctinputoctets = '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}', acctterminatecause = '%{Acct-Terminate-Cause}', acctstopdelay = '%{%{Acct-Delay-Time}:-0}', connectinfo_stop = '%{Connect-Info}' WHERE acctsessionid = '%{Acct-Session-Id}' AND username = '%{SQL-User-Name}' AND nasipaddress = '%{NAS-IP-Address}'" accounting_stop_query_alt = " INSERT INTO radacct (acctsessionid, acctuniqueid, username, realm, nasipaddress, nasportid, nasporttype, acctstarttime, acctstoptime, acctsessiontime, acctauthentic, connectinfo_start, connectinfo_stop, acctinputoctets, acctoutputoctets, calledstationid, callingstationid, acctterminatecause, servicetype, framedprotocol, framedipaddress, acctstartdelay, acctstopdelay) VALUES ('%{Acct-Session-Id}', '%{Acct-Unique-Session-Id}', '%{SQL-User-Name}', '%{Realm}', '%{NAS-IP-Address}', '%{NAS-Port}', '%{NAS-Port-Type}', DATE_SUB('%S', INTERVAL (%{%{Acct-Session-Time}:-0} + %{%{Acct-Delay-Time}:-0}) SECOND), '%S', '%{Acct-Session-Time}', '%{Acct-Authentic}', '', '%{Connect-Info}', '%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}', '%{%{Acct-Output-Gigawords}:-0}' << 32 | '%{%{Acct-Output-Octets}:-0}', '%{Called-Station-Id}', '%{Calling-Station-Id}', '%{Acct-Terminate-Cause}', '%{Service-Type}', '%{Framed-Protocol}', '%{Framed-IP-Address}', '0', '%{%{Acct-Delay-Time}:-0}')" group_membership_query = "SELECT groupname FROM radusergroup WHERE username = '%{SQL-User-Name}' ORDER BY priority" connect_failure_retry_delay = 60 simul_count_query = "" simul_verify_query = "SELECT radacctid, acctsessionid, username, nasipaddress, nasportid, framedipaddress, callingstationid, framedprotocol FROM radacct WHERE username = '%{SQL-User-Name}' AND acctstoptime IS NULL" postauth_query = "INSERT INTO radpostauth (username, pass, reply, authdate) VALUES ( '%{User-Name}', '%{%{User-Password}:-%{Chap-Password}}', '%{reply:Packet-Type}', '%S')" safe-characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /" } rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked rlm_sql (sql): Attempting to connect to radius@localhost:/radius rlm_sql (sql): starting 0 rlm_sql (sql): Attempting to connect rlm_sql_mysql #0 rlm_sql_mysql: Starting connect to MySQL server for #0 rlm_sql (sql): Connected new DB handle, #0 rlm_sql (sql): starting 1 rlm_sql (sql): Attempting to connect rlm_sql_mysql #1 rlm_sql_mysql: Starting connect to MySQL server for #1 rlm_sql (sql): Connected new DB handle, #1 rlm_sql (sql): starting 2 rlm_sql (sql): Attempting to connect rlm_sql_mysql #2 rlm_sql_mysql: Starting connect to MySQL server for #2 rlm_sql (sql): Connected new DB handle, #2 rlm_sql (sql): starting 3 rlm_sql (sql): Attempting to connect rlm_sql_mysql #3 rlm_sql_mysql: Starting connect to MySQL server for #3 rlm_sql (sql): Connected new DB handle, #3 rlm_sql (sql): starting 4 rlm_sql (sql): Attempting to connect rlm_sql_mysql #4 rlm_sql_mysql: Starting connect to MySQL server for #4 rlm_sql (sql): Connected new DB handle, #4 Module: Checking preacct {...} for more modules to load Module: Linked to module rlm_acct_unique Module: Instantiating acct_unique acct_unique { key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port" } Module: Checking accounting {...} for more modules to load Module: Linked to module rlm_detail Module: Instantiating detail detail { detailfile = "/usr/local/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d" header = "%t" detailperm = 384 dirperm = 493 locking = no log_packet_header = no } Module: Instantiating attr_filter.accounting_response attr_filter attr_filter.accounting_response { attrsfile = "/usr/local/etc/raddb/attrs.accounting_response" key = "%{User-Name}" } Module: Checking session {...} for more modules to load Module: Checking post-proxy {...} for more modules to load Module: Checking post-auth {...} for more modules to load } radiusd: #### Opening IP addresses and Ports #### listen { type = "auth" ipaddr = * port = 0 } listen { type = "acct" ipaddr = * port = 0 } Listening on authentication address * port 1812 Listening on accounting address * port 1813 Listening on proxy address * port 1814 Ready to process requests. Ignoring request to authentication address * port 1812 from unknown client 192.168.1.7 port 1024 Ready to process requests. Ignoring request to authentication address * port 1812 from unknown client 192.168.1.7 port 1024 Ready to process requests. Ignoring request to authentication address * port 1812 from unknown client 192.168.1.7 port 1024 Ready to process requests. +----+-------------+-----------+-------+-------+------------+-----------+-------------+ | id | nasname | shortname | type | ports | secret | community | description | +----+-------------+-----------+-------+-------+------------+-----------+-------------+ | 3 | 192.168.1.7 | jasonwifi | other | 1812 | testing123 | | | +----+-------------+-----------+-------+-------+------------+-----------+-------------+ 1 row in set (0.00 sec) -- View this message in context: http://www.nabble.com/Dynamic-Clients-with-FreeRADIUS-tp19384912p19386705.ht... Sent from the FreeRadius - User mailing list archive at Nabble.com.

Sent: 09 September 2008 11:16 AM To: FreeRadius users mailing list Subject: Re: Dynamic Clients with FreeRADIUS

It's a bug in 2.1.0 that will be fixed in 2.1.1.

Hi, Is the the "availibility of Nas-Identendifier" to the virtual server thing?? Thanks Johan Meiring

Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

Johan Meiring wrote:

...

Is the the "availibility of Nas-Identendifier" to the virtual server thing??

No. Maybe in 2.1.2.

Hi Alan, Now that 2.1.1 is out, is it still on the cards for 2.1.2? If you could let me know when it has been comitted to git, I would love to test it. Thanks! Johan meiring

Alan DeKok.

- List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html