Sorry, I should have mentioned I already tried man rlm_passwd and couldn't figure it out. I've been through it again and have made the following changes: 1. created a file /etc/raddb/path_group path_group:user1,user2,user3,user4,user5 2. Added the following to /etc/raddb/dictionary ATTRIBUTE User_Group_Name 3003 string 3. Added to modules/passwd filename = /etc/raddb/path_group hashsize = 20 allowmultiplekeys = yes format = "~User_Group_Name:*,User-Name" 4. Also edited modules/etc_group because I couldn't make out which file to put these items in passwd etc_group { filename = /etc/raddb/path_group format = "~User_Group_Name:*,User-Name" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" } 5. Inserted this into the post-auth section of sites-enabled/default if ("%{User_Group_Name}" == path_group) { update reply { Reply-Message := "You are not allowed here" } reject } Debug output is: FreeRADIUS Version 2.1.6, for host i686-pc-linux-gnu, built on Nov 20 2009 at 09:43:24 Copyright (C) 1999-2009 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 /etc/raddb/radiusd.conf including configuration file /etc/raddb/proxy.conf including configuration file /etc/raddb/clients.conf including files in directory /etc/raddb/modules/ including configuration file /etc/raddb/modules/inner-eap including configuration file /etc/raddb/modules/pap including configuration file /etc/raddb/modules/ippool including configuration file /etc/raddb/modules/expiration including configuration file /etc/raddb/modules/files including configuration file /etc/raddb/modules/attr_rewrite including configuration file /etc/raddb/modules/detail.example.com including configuration file /etc/raddb/modules/exec including configuration file /etc/raddb/modules/etc_group including configuration file /etc/raddb/modules/preprocess including configuration file /etc/raddb/modules/ntlm_auth including configuration file /etc/raddb/modules/detail.log including configuration file /etc/raddb/modules/passwd including configuration file /etc/raddb/modules/linelog including configuration file /etc/raddb/modules/radutmp including configuration file /etc/raddb/modules/smsotp including configuration file /etc/raddb/modules/mac2ip including configuration file /etc/raddb/modules/logintime including configuration file /etc/raddb/modules/unix including configuration file /etc/raddb/modules/attr_filter including configuration file /etc/raddb/modules/ldap including configuration file /etc/raddb/modules/counter including configuration file /etc/raddb/modules/mac2vlan including configuration file /etc/raddb/modules/sqlcounter_expire_on_login including configuration file /etc/raddb/modules/always including configuration file /etc/raddb/modules/expr including configuration file /etc/raddb/modules/sradutmp including configuration file /etc/raddb/modules/policy including configuration file /etc/raddb/modules/wimax including configuration file /etc/raddb/modules/sql_log including configuration file /etc/raddb/modules/realm including configuration file /etc/raddb/modules/echo including configuration file /etc/raddb/modules/acct_unique including configuration file /etc/raddb/modules/otp including configuration file /etc/raddb/modules/mschap including configuration file /etc/raddb/modules/krb5 including configuration file /etc/raddb/modules/smbpasswd including configuration file /etc/raddb/modules/checkval including configuration file /etc/raddb/modules/digest including configuration file /etc/raddb/modules/pam including configuration file /etc/raddb/modules/chap including configuration file /etc/raddb/modules/perl including configuration file /etc/raddb/modules/detail including configuration file /etc/raddb/eap.conf including configuration file /etc/raddb/policy.conf including files in directory /etc/raddb/sites-enabled/ including configuration file /etc/raddb/sites-enabled/control-socket including configuration file /etc/raddb/sites-enabled/inner-tunnel including configuration file /etc/raddb/sites-enabled/default group = radiusd user = radiusd including dictionary file /etc/raddb/dictionary main { prefix = "/usr" localstatedir = "/var" logdir = "/home/radlogs" libdir = "/usr/lib/freeradius" radacctdir = "/home/radlogs/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 allow_core_dumps = no pidfile = "/var/run/radiusd/radiusd.pid" checkrad = "/usr/sbin/checkrad" debug_level = 0 proxy_requests = yes log { stripped_names = no auth = yes auth_badpass = no auth_goodpass = no } security { max_attributes = 200 reject_delay = 1 status_server = yes } } 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 = "**********" response_window = 20 max_outstanding = 65536 require_message_authenticator = no 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 irt = 2 mrt = 16 mrc = 5 mrd = 30 } home_server_pool my_auth_failover { type = fail-over home_server = localhost } realm example.com { auth_pool = my_auth_failover } realm LOCAL { } radiusd: #### Loading Clients #### client localhost { ipaddr = 127.0.0.1 require_message_authenticator = no secret = "********" nastype = "other" } client xxx.xxx.xxx.xx { require_message_authenticator = no secret = "********" shortname = "self" } client xxx.xxx.x.x/16 { require_message_authenticator = no secret = "xxxxxxxx" shortname = "Anyone" nastype = "pc" } 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 = no require_strong = no with_ntdomain_hack = no } Module: Linked to module rlm_unix Module: Instantiating unix unix { radwtmp = "/home/radlogs/radwtmp" } Module: Linked to module rlm_eap Module: Instantiating eap eap { default_eap_type = "md5" 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 = "/etc/raddb/certs/server.pem" certificate_file = "/etc/raddb/certs/server.pem" CA_file = "/etc/raddb/certs/ca.pem" private_key_password = "whatever" dh_file = "/etc/raddb/certs/dh" random_file = "/etc/raddb/certs/random" fragment_size = 1024 include_length = yes check_crl = no cipher_list = "DEFAULT" make_cert_command = "/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 = "md5" copy_request_to_tunnel = no use_tunneled_reply = no virtual_server = "inner-tunnel" include_length = yes } 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 virtual_server = "inner-tunnel" } Module: Linked to sub-module rlm_eap_mschapv2 Module: Instantiating eap-mschapv2 mschapv2 { with_ntdomain_hack = no } Module: Instantiating ntlm_auth exec ntlm_auth { wait = yes program = "/usr/bin/ntlm_auth --request-nt-key --domain=******* --username=%{mschap:User-Name} --password=%{User-Password}" input_pairs = "request" shell_escape = yes } 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 = "/etc/raddb/users" acctusersfile = "/etc/raddb/acct_users" preproxy_usersfile = "/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 = "/home/radlogs/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 = "/etc/raddb/attrs.access_reject" key = "%{User-Name}" } } # modules } # server server { 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 = "/etc/raddb/huntgroups" hints = "/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: 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 = "/home/radlogs/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 = "/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 Module: Linked to module rlm_always Module: Instantiating reject always reject { rcode = "reject" simulcount = 0 mpp = no } } # modules } # server radiusd: #### Opening IP addresses and Ports #### listen { type = "auth" ipaddr = xxx.xxx.xxx.xx port = 0 } listen { type = "acct" ipaddr = * port = 0 } listen { type = "control" listen { socket = "/var/run/radiusd/radiusd.sock" } } Listening on authentication address xxx.xxx.xxx.xx port 1812 Listening on accounting address * port 1813 Listening on command file /var/run/radiusd/radiusd.sock Listening on proxy address xxx.xxx.xxx.xx port 1814 Ready to process requests. rad_recv: Access-Request packet from host xxx.xxx.xxx.xx port 50600, id=177, length=60 User-Name = "********" User-Password = "********" NAS-IP-Address = 127.0.0.2 NAS-Port = 0 +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "********", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound [files] users: Matched entry ******** at line 7 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop [pap] WARNING! No "known good" password found for the user. Authentication may fail because of this. ++[pap] returns noop Found Auth-Type = ntlm_auth +- entering group authenticate {...} [ntlm_auth] expand: --username=%{mschap:User-Name} -> --username=******** [ntlm_auth] expand: --password=%{User-Password} -> --password=******** Exec-Program output: NT_STATUS_OK: Success (0x0) Exec-Program-Wait: plaintext: NT_STATUS_OK: Success (0x0) Exec-Program: returned: 0 ++[ntlm_auth] returns ok Login OK: [********] (from client self port 0) +- entering group post-auth {...} ++[exec] returns noop ++? if ("%{User_Group_Name}" == path_group) expand: %{User_Group_Name} -> ? Evaluating ("%{User_Group_Name}" == path_group) -> FALSE ++? if ("%{User_Group_Name}" == path_group) -> FALSE Sending Access-Accept of id 177 to xxx.xxx.xxx.xx port 50600 Finished request 0. Going to the next request Waking up in 4.9 seconds. The User_Group_Name attribute doesn't seem to get created/populated so when I check it in post-auth it is null. What have I missed? Thanks, Mark Whitmarsh. ________________________________________ From: freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org [freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org] On Behalf Of Alan DeKok [aland@deployingradius.com] Sent: 26 May 2010 18:53 To: FreeRadius users mailing list Subject: Re: Restricting certain users access to certain NAS devices Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust) wrote:

The idea is that superusers are allowed to login to any of the 200 network devices whilst users are only allowed to login to a subset of say 50 devices. It's straightforward enough for the superusers and works fine but I'm stumped on how to handle the others. I have tested the following OK in sites-enabled/default:

Groups. See "man rlm_passwd". Create RADIUS-specific groups, and check them. Users can be in a group, *or* NASes. Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ********************************************************************************************************************

Thanks Alan. I've got that bit working now. However, I can't get my check on the NAS-IP-Address attribute to work. I now have this config: File dictionary ATTRIBUTE User_Group_Name 3003 string ATTRIBUTE Nas_Group_Name 3004 string File modules/etc_group passwd etc_group { filename = /etc/raddb/lth_group format = "~User_Group_Name:*,User-Name" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" } File modules/nas_group passwd nas_group { filename = /etc/raddb/nas_group format = "~Nas_Group_Name:*,NAS-IP-Address" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" } File lth_group path_group:user1,user2,user3,user4 comms_group:superuser1,superuser2,superuser3,superuser4 File nas_group path_nas_group:xxx.xxx.225.59,xxx.xxx.104.10 comms_nas_group:xxx.xxx.225.60 File sites-enabled/default - post-auth section etc_group nas_group exec #if ("%{NAS-IP-Address}" == xxx.xxx.225.59) { # update reply { # Reply-Message := "Mark Whitmarsh not allowed here" # } # reject #} if ("%{User_Group_Name}" == path_group) { if ("%{Nas_Group_Name}" != path_nas_group) { update reply { Reply-Message := "Pathology not allowed here" } reject } } Post-Auth-Type REJECT { attr_filter.access_reject } In debug nas_group always returns notfound. If I change the nas_group module to use Calling-Station-Id for example then it successfully returns my IP address (xxx.xxx.104.10). Is it because NAS-IP-Address is type ipaddr that it doesn't find it in the nas_group file? Mark. ________________________________________ From: freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org [freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org] On Behalf Of Alan DeKok [aland@deployingradius.com] Sent: 27 May 2010 17:02 To: FreeRadius users mailing list Subject: Re: Restricting certain users access to certain NAS devices Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust) wrote:

Sorry, I should have mentioned I already tried man rlm_passwd and couldn't figure it out. I've been through it again and have made the following changes:

1. created a file /etc/raddb/path_group path_group:user1,user2,user3,user4,user5

2. Added the following to /etc/raddb/dictionary ATTRIBUTE User_Group_Name 3003 string

3. Added to modules/passwd filename = /etc/raddb/path_group hashsize = 20 allowmultiplekeys = yes format = "~User_Group_Name:*,User-Name"

4. Also edited modules/etc_group because I couldn't make out which file to put these items in passwd etc_group { filename = /etc/raddb/path_group format = "~User_Group_Name:*,User-Name" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" }

5. Inserted this into the post-auth section of sites-enabled/default

if ("%{User_Group_Name}" == path_group) {

You should list "etc_group" in the post-auth section. The module will be loaded, and will add the User_Group_Name attribute.

Debug output is:

Which shows that the etc_group module isn't used when a packet is received. Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ********************************************************************************************************************

Hi Alan, Thanks for the simplifications - I've put those in. I have done lots more reading and testing and found that any attribute I check for in a group file which has type ipaddr fails. I cannot see why this is. When debug displays the attributes and their values there are no quotes around ipaddr type attributes - I don't know if this is relevant. eg: User-Name = "whitmarm" User-Password = "*" NAS-IP-Address = xxx.xxx.225.59 Calling-Station-Id = "xxx.xxx.104.10" The full debug output is below but the section where freeradius processes the groups is: Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10) +- entering group post-auth {...} [user_group] Added User_Group_Name: 'path_group' to request_items ++[user_group] returns ok ++[nas_group] returns notfound ++[exec] returns noop nas_group always returns notfound if I use NAS-IP-Address, Framed-IP-Address, Framed-IP-Netmask or Login-IP-Host (all type ipaddr) but works with other attributes like Calling-Station-ID. Full debug, switchgroup file and nas_group module of failure: freerad2:~ # radiusd -X FreeRADIUS Version 2.1.6, for host i686-pc-linux-gnu, built on Nov 20 2009 at 09:43:24 Copyright (C) 1999-2009 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 /etc/raddb/radiusd.conf including configuration file /etc/raddb/proxy.conf including configuration file /etc/raddb/clients.conf including files in directory /etc/raddb/modules/ including configuration file /etc/raddb/modules/inner-eap including configuration file /etc/raddb/modules/pap including configuration file /etc/raddb/modules/ippool including configuration file /etc/raddb/modules/expiration including configuration file /etc/raddb/modules/files including configuration file /etc/raddb/modules/attr_rewrite including configuration file /etc/raddb/modules/detail.example.com including configuration file /etc/raddb/modules/exec including configuration file /etc/raddb/modules/etc_group including configuration file /etc/raddb/modules/preprocess including configuration file /etc/raddb/modules/ntlm_auth including configuration file /etc/raddb/modules/detail.log including configuration file /etc/raddb/modules/passwd including configuration file /etc/raddb/modules/linelog including configuration file /etc/raddb/modules/radutmp including configuration file /etc/raddb/modules/smsotp including configuration file /etc/raddb/modules/mac2ip including configuration file /etc/raddb/modules/logintime including configuration file /etc/raddb/modules/unix including configuration file /etc/raddb/modules/attr_filter including configuration file /etc/raddb/modules/ldap including configuration file /etc/raddb/modules/nas_group including configuration file /etc/raddb/modules/counter including configuration file /etc/raddb/modules/mac2vlan including configuration file /etc/raddb/modules/user_group including configuration file /etc/raddb/modules/sqlcounter_expire_on_login including configuration file /etc/raddb/modules/always including configuration file /etc/raddb/modules/expr including configuration file /etc/raddb/modules/sradutmp including configuration file /etc/raddb/modules/policy including configuration file /etc/raddb/modules/wimax including configuration file /etc/raddb/modules/sql_log including configuration file /etc/raddb/modules/realm including configuration file /etc/raddb/modules/echo including configuration file /etc/raddb/modules/acct_unique including configuration file /etc/raddb/modules/otp including configuration file /etc/raddb/modules/mschap including configuration file /etc/raddb/modules/krb5 including configuration file /etc/raddb/modules/smbpasswd including configuration file /etc/raddb/modules/checkval including configuration file /etc/raddb/modules/digest including configuration file /etc/raddb/modules/pam including configuration file /etc/raddb/modules/chap including configuration file /etc/raddb/modules/perl including configuration file /etc/raddb/modules/detail including configuration file /etc/raddb/eap.conf including configuration file /etc/raddb/policy.conf including files in directory /etc/raddb/sites-enabled/ including configuration file /etc/raddb/sites-enabled/control-socket including configuration file /etc/raddb/sites-enabled/inner-tunnel including configuration file /etc/raddb/sites-enabled/default group = radiusd user = radiusd including dictionary file /etc/raddb/dictionary main { prefix = "/usr" localstatedir = "/var" logdir = "/home/radlogs" libdir = "/usr/lib/freeradius" radacctdir = "/home/radlogs/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 allow_core_dumps = no pidfile = "/var/run/radiusd/radiusd.pid" checkrad = "/usr/sbin/checkrad" debug_level = 0 proxy_requests = yes log { stripped_names = no auth = yes auth_badpass = no auth_goodpass = no } security { max_attributes = 200 reject_delay = 1 status_server = yes } } 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 require_message_authenticator = no 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 irt = 2 mrt = 16 mrc = 5 mrd = 30 } home_server_pool my_auth_failover { type = fail-over home_server = localhost } realm example.com { auth_pool = my_auth_failover } realm LOCAL { } radiusd: #### Loading Clients #### client localhost { ipaddr = 127.0.0.1 require_message_authenticator = no secret = "*" nastype = "other" } client xxx.xxx.107.40 { require_message_authenticator = no secret = "*" shortname = "self" } client xxx.xxx.0.0/16 { require_message_authenticator = no secret = "*" shortname = "Anyone" nastype = "pc" } 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 = no require_strong = no with_ntdomain_hack = no } Module: Linked to module rlm_unix Module: Instantiating unix unix { radwtmp = "/home/radlogs/radwtmp" } Module: Linked to module rlm_eap Module: Instantiating eap eap { default_eap_type = "md5" 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 = "/etc/raddb/certs/server.pem" certificate_file = "/etc/raddb/certs/server.pem" CA_file = "/etc/raddb/certs/ca.pem" private_key_password = "whatever" dh_file = "/etc/raddb/certs/dh" random_file = "/etc/raddb/certs/random" fragment_size = 1024 include_length = yes check_crl = no cipher_list = "DEFAULT" make_cert_command = "/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 = "md5" copy_request_to_tunnel = no use_tunneled_reply = no virtual_server = "inner-tunnel" include_length = yes } 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 virtual_server = "inner-tunnel" } Module: Linked to sub-module rlm_eap_mschapv2 Module: Instantiating eap-mschapv2 mschapv2 { with_ntdomain_hack = no } Module: Instantiating ntlm_auth exec ntlm_auth { wait = yes program = "/usr/bin/ntlm_auth --request-nt-key --domain=xxx --username=%{mschap:User-Name} --password=%{User-Password}" input_pairs = "request" shell_escape = yes } 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 = "/etc/raddb/users" acctusersfile = "/etc/raddb/acct_users" preproxy_usersfile = "/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 = "/home/radlogs/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 = "/etc/raddb/attrs.access_reject" key = "%{User-Name}" } } # modules } # server server { 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 = "/etc/raddb/huntgroups" hints = "/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: 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 = "/home/radlogs/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 = "/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 Module: Linked to module rlm_passwd Module: Instantiating user_group passwd user_group { filename = "/etc/raddb/usergroup" format = "~User_Group_Name:*,User-Name" delimiter = ":" ignorenislike = no ignoreempty = yes allowmultiplekeys = yes hashsize = 50 } rlm_passwd: nfields: 2 keyfield 1(User-Name) listable: yes Module: Instantiating nas_group passwd nas_group { filename = "/etc/raddb/switchgroup" format = "~Nas_Group_Name:*,NAS-IP-Address" delimiter = ":" ignorenislike = no ignoreempty = no allowmultiplekeys = yes hashsize = 50 } rlm_passwd: nfields: 2 keyfield 1(NAS-IP-Address) listable: yes Module: Linked to module rlm_always Module: Instantiating reject always reject { rcode = "reject" simulcount = 0 mpp = no } } # modules } # server radiusd: #### Opening IP addresses and Ports #### listen { type = "auth" ipaddr = xxx.xxx.107.40 port = 0 } listen { type = "acct" ipaddr = * port = 0 } listen { type = "control" listen { socket = "/var/run/radiusd/radiusd.sock" } } Listening on authentication address xxx.xxx.107.40 port 1812 Listening on accounting address * port 1813 Listening on command file /var/run/radiusd/radiusd.sock Listening on proxy address xxx.xxx.107.40 port 1814 Ready to process requests. rad_recv: Access-Request packet from host xxx.xxx.104.10 port 58483, id=21, length=70 User-Name = "whitmarm" User-Password = "*" NAS-IP-Address = xxx.xxx.225.59 Calling-Station-Id = "xxx.xxx.104.10" +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "whitmarm", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound [files] users: Matched entry whitmarm at line 7 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop [pap] WARNING! No "known good" password found for the user. Authentication may fail because of this. ++[pap] returns noop Found Auth-Type = ntlm_auth +- entering group authenticate {...} [ntlm_auth] expand: --username=%{mschap:User-Name} -> --username=whitmarm [ntlm_auth] expand: --password=%{User-Password} -> --password=* Exec-Program output: NT_STATUS_OK: Success (0x0) Exec-Program-Wait: plaintext: NT_STATUS_OK: Success (0x0) Exec-Program: returned: 0 ++[ntlm_auth] returns ok Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10) +- entering group post-auth {...} [user_group] Added User_Group_Name: 'path_group' to request_items ++[user_group] returns ok ++[nas_group] returns notfound ++[exec] returns noop ++? if (User_Group_Name == path_group) ? Evaluating (User_Group_Name == path_group) -> TRUE ++? if (User_Group_Name == path_group) -> TRUE ++- entering if (User_Group_Name == path_group) {...} +++? if (Nas_Group_Name == comms_nas_group) (Attribute Nas_Group_Name was not found) ++- if (User_Group_Name == path_group) returns noop Sending Access-Accept of id 21 to xxx.xxx.104.10 port 58483 Finished request 0. Going to the next request Waking up in 4.9 seconds. Cleaning up request 0 ID 21 with timestamp +3 Ready to process requests. ----------------------------------------------------------------------- switchgroup file: path_nas_group:xxx.xxx.225.59,xxx.xxx.104.10 comms_nas_group:xxx.xxx.225.60 ---------------------------------------------------------------------- nas_group module: passwd nas_group { filename = /etc/raddb/switchgroup format = "~Nas_Group_Name:*,NAS-IP-Address" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" ignoreempty = no } ----------------------------------------------------------------------- ----------------------------------------------------------------------- Full debug, switchgroup file and nas_group module of success: radiusd -X FreeRADIUS Version 2.1.6, for host i686-pc-linux-gnu, built on Nov 20 2009 at 09:43:24 Copyright (C) 1999-2009 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 /etc/raddb/radiusd.conf including configuration file /etc/raddb/proxy.conf including configuration file /etc/raddb/clients.conf including files in directory /etc/raddb/modules/ including configuration file /etc/raddb/modules/inner-eap including configuration file /etc/raddb/modules/pap including configuration file /etc/raddb/modules/ippool including configuration file /etc/raddb/modules/expiration including configuration file /etc/raddb/modules/files including configuration file /etc/raddb/modules/attr_rewrite including configuration file /etc/raddb/modules/detail.example.com including configuration file /etc/raddb/modules/exec including configuration file /etc/raddb/modules/etc_group including configuration file /etc/raddb/modules/preprocess including configuration file /etc/raddb/modules/ntlm_auth including configuration file /etc/raddb/modules/detail.log including configuration file /etc/raddb/modules/passwd including configuration file /etc/raddb/modules/linelog including configuration file /etc/raddb/modules/radutmp including configuration file /etc/raddb/modules/smsotp including configuration file /etc/raddb/modules/mac2ip including configuration file /etc/raddb/modules/logintime including configuration file /etc/raddb/modules/unix including configuration file /etc/raddb/modules/attr_filter including configuration file /etc/raddb/modules/ldap including configuration file /etc/raddb/modules/nas_group including configuration file /etc/raddb/modules/counter including configuration file /etc/raddb/modules/mac2vlan including configuration file /etc/raddb/modules/user_group including configuration file /etc/raddb/modules/sqlcounter_expire_on_login including configuration file /etc/raddb/modules/always including configuration file /etc/raddb/modules/expr including configuration file /etc/raddb/modules/sradutmp including configuration file /etc/raddb/modules/policy including configuration file /etc/raddb/modules/wimax including configuration file /etc/raddb/modules/sql_log including configuration file /etc/raddb/modules/realm including configuration file /etc/raddb/modules/echo including configuration file /etc/raddb/modules/acct_unique including configuration file /etc/raddb/modules/otp including configuration file /etc/raddb/modules/mschap including configuration file /etc/raddb/modules/krb5 including configuration file /etc/raddb/modules/smbpasswd including configuration file /etc/raddb/modules/checkval including configuration file /etc/raddb/modules/digest including configuration file /etc/raddb/modules/pam including configuration file /etc/raddb/modules/chap including configuration file /etc/raddb/modules/perl including configuration file /etc/raddb/modules/detail including configuration file /etc/raddb/eap.conf including configuration file /etc/raddb/policy.conf including files in directory /etc/raddb/sites-enabled/ including configuration file /etc/raddb/sites-enabled/control-socket including configuration file /etc/raddb/sites-enabled/inner-tunnel including configuration file /etc/raddb/sites-enabled/default group = radiusd user = radiusd including dictionary file /etc/raddb/dictionary main { prefix = "/usr" localstatedir = "/var" logdir = "/home/radlogs" libdir = "/usr/lib/freeradius" radacctdir = "/home/radlogs/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 allow_core_dumps = no pidfile = "/var/run/radiusd/radiusd.pid" checkrad = "/usr/sbin/checkrad" debug_level = 0 proxy_requests = yes log { stripped_names = no auth = yes auth_badpass = no auth_goodpass = no } security { max_attributes = 200 reject_delay = 1 status_server = yes } } 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 require_message_authenticator = no 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 irt = 2 mrt = 16 mrc = 5 mrd = 30 } home_server_pool my_auth_failover { type = fail-over home_server = localhost } realm example.com { auth_pool = my_auth_failover } realm LOCAL { } radiusd: #### Loading Clients #### client localhost { ipaddr = 127.0.0.1 require_message_authenticator = no secret = "*" nastype = "other" } client xxx.xxx.107.40 { require_message_authenticator = no secret = "*" shortname = "self" } client xxx.xxx.0.0/16 { require_message_authenticator = no secret = "*" shortname = "Anyone" nastype = "pc" } 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 = no require_strong = no with_ntdomain_hack = no } Module: Linked to module rlm_unix Module: Instantiating unix unix { radwtmp = "/home/radlogs/radwtmp" } Module: Linked to module rlm_eap Module: Instantiating eap eap { default_eap_type = "md5" 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 = "/etc/raddb/certs/server.pem" certificate_file = "/etc/raddb/certs/server.pem" CA_file = "/etc/raddb/certs/ca.pem" private_key_password = "whatever" dh_file = "/etc/raddb/certs/dh" random_file = "/etc/raddb/certs/random" fragment_size = 1024 include_length = yes check_crl = no cipher_list = "DEFAULT" make_cert_command = "/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 = "md5" copy_request_to_tunnel = no use_tunneled_reply = no virtual_server = "inner-tunnel" include_length = yes } 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 virtual_server = "inner-tunnel" } Module: Linked to sub-module rlm_eap_mschapv2 Module: Instantiating eap-mschapv2 mschapv2 { with_ntdomain_hack = no } Module: Instantiating ntlm_auth exec ntlm_auth { wait = yes program = "/usr/bin/ntlm_auth --request-nt-key --domain=* --username=%{mschap:User-Name} --password=%{User-Password}" input_pairs = "request" shell_escape = yes } 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 = "/etc/raddb/users" acctusersfile = "/etc/raddb/acct_users" preproxy_usersfile = "/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 = "/home/radlogs/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 = "/etc/raddb/attrs.access_reject" key = "%{User-Name}" } } # modules } # server server { 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 = "/etc/raddb/huntgroups" hints = "/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: 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 = "/home/radlogs/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 = "/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 Module: Linked to module rlm_passwd Module: Instantiating user_group passwd user_group { filename = "/etc/raddb/usergroup" format = "~User_Group_Name:*,User-Name" delimiter = ":" ignorenislike = no ignoreempty = yes allowmultiplekeys = yes hashsize = 50 } rlm_passwd: nfields: 2 keyfield 1(User-Name) listable: yes Module: Instantiating nas_group passwd nas_group { filename = "/etc/raddb/switchgroup" format = "~Nas_Group_Name:*,Calling-Station-Id" delimiter = ":" ignorenislike = no ignoreempty = no allowmultiplekeys = yes hashsize = 50 } rlm_passwd: nfields: 2 keyfield 1(Calling-Station-Id) listable: yes Module: Linked to module rlm_always Module: Instantiating reject always reject { rcode = "reject" simulcount = 0 mpp = no } } # modules } # server radiusd: #### Opening IP addresses and Ports #### listen { type = "auth" ipaddr = xxx.xxx.107.40 port = 0 } listen { type = "acct" ipaddr = * port = 0 } listen { type = "control" listen { socket = "/var/run/radiusd/radiusd.sock" } } Listening on authentication address xxx.xxx.107.40 port 1812 Listening on accounting address * port 1813 Listening on command file /var/run/radiusd/radiusd.sock Listening on proxy address xxx.xxx.107.40 port 1814 Ready to process requests. rad_recv: Access-Request packet from host xxx.xxx.104.10 port 60275, id=22, length=70 User-Name = "whitmarm" User-Password = "*" NAS-IP-Address = xxx.xxx.225.59 Calling-Station-Id = "xxx.xxx.104.10" +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "whitmarm", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound [files] users: Matched entry whitmarm at line 7 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop [pap] WARNING! No "known good" password found for the user. Authentication may fail because of this. ++[pap] returns noop Found Auth-Type = ntlm_auth +- entering group authenticate {...} [ntlm_auth] expand: --username=%{mschap:User-Name} -> --username=whitmarm [ntlm_auth] expand: --password=%{User-Password} -> --password=* Exec-Program output: NT_STATUS_OK: Success (0x0) Exec-Program-Wait: plaintext: NT_STATUS_OK: Success (0x0) Exec-Program: returned: 0 ++[ntlm_auth] returns ok Login OK: [whitmarm] (from client Anyone port 0 cli xxx.xxx.104.10) +- entering group post-auth {...} [user_group] Added User_Group_Name: 'path_group' to request_items ++[user_group] returns ok [nas_group] Added Nas_Group_Name: 'path_nas_group' to request_items ++[nas_group] returns ok ++[exec] returns noop ++? if (User_Group_Name == path_group) ? Evaluating (User_Group_Name == path_group) -> TRUE ++? if (User_Group_Name == path_group) -> TRUE ++- entering if (User_Group_Name == path_group) {...} +++? if (Nas_Group_Name == comms_nas_group) ? Evaluating (Nas_Group_Name == comms_nas_group) -> FALSE +++? if (Nas_Group_Name == comms_nas_group) -> FALSE ++- if (User_Group_Name == path_group) returns noop Sending Access-Accept of id 22 to xxx.xxx.104.10 port 60275 Finished request 0. Going to the next request Waking up in 4.9 seconds. Cleaning up request 0 ID 22 with timestamp +8 Ready to process requests. ----------------------------------------------------------------------- switchgroup file: path_nas_group:xxx.xxx.225.59,xxx.xxx.104.10 comms_nas_group:xxx.xxx.225.60 ------------------------------------------------------------------------- nas_group module: passwd nas_group { filename = /etc/raddb/switchgroup format = "~Nas_Group_Name:*,Calling-Station-Id" hashsize = 50 ignorenislike = no allowmultiplekeys = yes delimiter = ":" ignoreempty = no } I cannot see anything obvious in the debug outputs that points to a mistake on my part. Is it in fact due to freeradius storing ipaddr attribute values in an internal format which doesn't match the xxx.xxx.xxx.xxx format I'm using in my nas_group file? Although they are displayed in human readable form in the debug output does freeradius translate them from it's internal format for display but not for lookups? If that is the case can you tell me what format they are stored in so I can put the correct values in my nas_group file? Or am I completely wrong? Thanks for your help, Mark Whitmarsh. ________________________________________ From: freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org [freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org] On Behalf Of Alan DeKok [aland@deployingradius.com] Sent: 06 June 2010 09:34 To: FreeRadius users mailing list Subject: Re: Restricting certain users access to certain NAS devices Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust) wrote:

Thanks Alan. I've got that bit working now. However, I can't get my check on the NAS-IP-Address attribute to work.

I now have this config:

OK... that should configure two groups.

File sites-enabled/default - post-auth section

etc_group nas_group

Which adds the User_Group_Name attribute to the request, as documented in "man rlm_passwd", and raddb/modules/passwd.

exec #if ("%{NAS-IP-Address}" == xxx.xxx.225.59) {

FYI: this could be simpler if (NAS-IP-Address == xxx.xxx.225.59) {

# update reply { # Reply-Message := "Mark Whitmarsh not allowed here" # } # reject #} if ("%{User_Group_Name}" == path_group) {

Again: if (User_Group_Name == path_group) {

In debug nas_group always returns notfound. If I change the nas_group module to use Calling-Station-Id for example then it successfully returns my IP address (xxx.xxx.104.10). Is it because NAS-IP-Address is type ipaddr that it doesn't find it in the nas_group file?

It shouldn't be. So... what does debug mode say? Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ********************************************************************************************************************

OK Alan. I'll look into alternative strategies until a fix is in place. Thanks for your help in getting me this far. Mark Whitmarsh. ________________________________________ From: freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org [freeradius-users-bounces+mark.whitmarsh=nhs.net@lists.freeradius.org] On Behalf Of Alan DeKok [aland@deployingradius.com] Sent: 07 July 2010 11:16 To: FreeRadius users mailing list Subject: Re: Restricting certain users access to certain NAS devices Whitmarsh Mark (Leeds Teaching Hospitals NHS Trust) wrote:

Hi Alan,

Thanks for the simplifications - I've put those in. I have done lots more reading and testing and found that any attribute I check for in a group file which has type ipaddr fails. I cannot see why this is. When debug displays the attributes and their values there are no quotes around ipaddr type attributes - I don't know if this is relevant. eg:

It looks like the passwd module can only handle integers and strings. The "v2.1.x" branch should have a fix which lets it handle IP addresses. The fix will go into 2.1.10. Alan DeKok. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html ******************************************************************************************************************** This message may contain confidential information. If you are not the intended recipient please inform the sender that you have received the message in error before deleting it. Please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Thank you for your co-operation. NHSmail is the secure email and directory service available for all NHS staff in England and Scotland NHSmail is approved for exchanging patient data and other sensitive information with NHSmail and GSI recipients NHSmail provides an email address for your career in the NHS and can be accessed anywhere For more information and to find out how you can switch, visit www.connectingforhealth.nhs.uk/nhsmail ********************************************************************************************************************