How do I set up simple AD integration?

King, Michael MKing at bridgew.edu
Tue Apr 11 17:34:14 CEST 2006


You would still need                with_ntdomain_hack = yes

But that isn't your actual problem.

It never called ntlm_auth

> -----Original Message-----
> From: 
> freeradius-users-bounces+mking=bridgew.edu at lists.freeradius.or
> g 
> [mailto:freeradius-users-bounces+mking=bridgew.edu at lists.freer
> adius.org] On Behalf Of Burton, Steven
> Sent: Tuesday, April 11, 2006 11:15 AM
> To: FreeRadius users mailing list
> Subject: RE: How do I set up simple AD integration?
> 
> 
> 
> > -----Original Message-----
> > From:
> > freeradius-users-bounces+sburton=shepherd-construction.co.uk at l
> > ists.freer
> > adius.org
> > [mailto:freeradius-users-bounces+sburton=shepherd-construction
> > .co.uk at lis
> > ts.freeradius.org]On Behalf Of King, Michael
> > Sent: 11 April 2006 15:40
> > To: FreeRadius users mailing list
> > Subject: RE: How do I set up simple AD integration?
> > 
> > 
> > > 
> > > Is there a how-to or tutorial for this simple case? I 
> have searched 
> > > this list and google generally. I have read the articles 
> referred to 
> > > on the FreeRadius home page and several others and I 
> still can't see 
> > > how the configuration works. Any and all help gratefully received.
> > > 
> > > Steve.
> > > 
> > 
> > 
> > As for the simple how to, they're a few, but none that I would 
> > consider easy to follow.
> > 
> >   What your looking for this the following lines:  (I have two 
> > ntlm_auth Lines, the original that is commented out, and 
> the one that 
> > I use.  They are long, so they will break across lines, but 
> they are 
> > not that way in my config file)
> > 
> > 
> >                 # Windows sends us a username in the form of
> >                 # DOMAIN\user, but sends the challenge response
> >                 # based on only the user portion.  This hack
> >                 # corrects for that incorrect behavior.
> >                 #
> >                 with_ntdomain_hack = yes
> > 
> >                 # The module can perform authentication itself, OR
> >                 # use a Windows Domain Controller.  This 
> configuration
> >                 # directive tells the module to call the ntlm_auth
> >                 # program, which will do the authentication, and 
> > return
> >                 # the NT-Key.  Note that you MUST have 
> "winbindd" and
> >                 # "nmbd" running on the local machine for ntlm_auth
> >                 # to work.  See the ntlm_auth program documentation
> >                 # for details.
> >                 #
> >                 # Be VERY careful when editing the following line!
> >                 #
> >                 #ntlm_auth = "/path/to/ntlm_auth --request-nt-key 
> > --username=%{Stripped-User-Name:-%{User-Name:-None}}
> > --challenge=%{mschap:Challenge:-00}
> > --nt-response=%{mschap:NT-Response:-00}"
> >                 ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key 
> > --username=%{mschap:User-Name} --challenge=%{mschap:Challenge} 
> > --nt-response=%{mschap:NT-Response}"
> 
> This stanza is a enclosed with the mschap section, still 
> nothing ventured....
> I changed the line and unfolded it and ran radiusd -X. The 
> first request didn't match anything usefull and was rejected 
> by System. I tried again but ticked the box 'CHAP' on 
> NTRadPing and got the output:
> 
> Starting - reading configuration files ...
> reread_config:  reading radiusd.conf
> Config:   including file: /usr/local/etc/raddb/proxy.conf
> Config:   including file: /usr/local/etc/raddb/clients.conf
> Config:   including file: /usr/local/etc/raddb/snmp.conf
> Config:   including file: /usr/local/etc/raddb/eap.conf
> Config:   including file: /usr/local/etc/raddb/sql.conf
>  main: prefix = "/usr/local"
>  main: localstatedir = "/var"
>  main: logdir = "/var/log"
>  main: libdir = "/usr/local/lib"
>  main: radacctdir = "/var/log/radacct"
>  main: hostname_lookups = no
>  main: max_request_time = 30
>  main: cleanup_delay = 5
>  main: max_requests = 1024
>  main: delete_blocked_requests = 0
>  main: port = 0
>  main: allow_core_dumps = no
>  main: log_stripped_names = no
>  main: log_file = "/var/log/radius.log"
>  main: log_auth = no
>  main: log_auth_badpass = no
>  main: log_auth_goodpass = no
>  main: pidfile = "/var/run/radiusd/radiusd.pid"
>  main: user = "(null)"
>  main: group = "(null)"
>  main: usercollide = no
>  main: lower_user = "no"
>  main: lower_pass = "no"
>  main: nospace_user = "no"
>  main: nospace_pass = "no"
>  main: checkrad = "/usr/local/sbin/checkrad"
>  main: proxy_requests = yes
>  proxy: retry_delay = 5
>  proxy: retry_count = 3
>  proxy: synchronous = no
>  proxy: default_fallback = yes
>  proxy: dead_time = 120
>  proxy: post_proxy_authorize = no
>  proxy: wake_all_if_all_dead = no
>  security: max_attributes = 200
>  security: reject_delay = 1
>  security: status_server = no
>  main: debug_level = 0
> read_config_files:  reading dictionary
> read_config_files:  reading naslist
> read_config_files:  reading clients
> read_config_files:  reading realms
> radiusd:  entering modules setup
> Module: Library search path is /usr/local/lib
> Module: Loaded exec
>  exec: wait = yes
>  exec: program = "(null)"
>  exec: input_pairs = "request"
>  exec: output_pairs = "(null)"
>  exec: packet_type = "(null)"
> rlm_exec: Wait=yes but no output defined. Did you mean output=none?
> Module: Instantiated exec (exec)
> Module: Loaded expr
> Module: Instantiated expr (expr)
> Module: Loaded PAP
>  pap: encryption_scheme = "crypt"
> Module: Instantiated pap (pap)
> Module: Loaded CHAP
> Module: Instantiated chap (chap)
> Module: Loaded MS-CHAP
>  mschap: use_mppe = yes
>  mschap: require_encryption = no
>  mschap: require_strong = no
>  mschap: with_ntdomain_hack = no
>  mschap: passwd = "(null)"
>  mschap: authtype = "MS-CHAP"
>  mschap: ntlm_auth = "/usr/local/bin/ntlm_auth 
> --request-nt-key --username=%{mschap:User-Name} 
> --challenge=%{mschap:Challenge} --nt-response=%{mschap:NT-Response}"
> Module: Instantiated mschap (mschap)
> Module: Loaded System
>  unix: cache = no
>  unix: passwd = "(null)"
>  unix: shadow = "(null)"
>  unix: group = "(null)"
>  unix: radwtmp = "/var/log/radwtmp"
>  unix: usegroup = no
>  unix: cache_reload = 600
> Module: Instantiated unix (unix)
> Module: Loaded eap
>  eap: default_eap_type = "md5"
>  eap: timer_expire = 60
>  eap: ignore_unknown_eap_types = no
>  eap: cisco_accounting_username_bug = no
> rlm_eap: Loaded and initialized type md5
> rlm_eap: Loaded and initialized type leap
>  gtc: challenge = "Password: "
>  gtc: auth_type = "PAP"
> rlm_eap: Loaded and initialized type gtc
>  tls: rsa_key_exchange = no
>  tls: dh_key_exchange = yes
>  tls: rsa_key_length = 512
>  tls: dh_key_length = 512
>  tls: verify_depth = 0
>  tls: CA_path = "(null)"
>  tls: pem_file_type = yes
>  tls: private_key_file = "/usr/local/etc/raddb/certs/cert-srv.pem"
>  tls: certificate_file = "/usr/local/etc/raddb/certs/cert-srv.pem"
>  tls: CA_file = "/usr/local/etc/raddb/certs/demoCA/cacert.pem"
>  tls: private_key_password = "whatever"
>  tls: dh_file = "/usr/local/etc/raddb/certs/dh"
>  tls: random_file = "/usr/local/etc/raddb/certs/random"
>  tls: fragment_size = 1024
>  tls: include_length = yes
>  tls: check_crl = no
>  tls: check_cert_cn = "(null)"
> rlm_eap_tls: Loading the certificate file as a chain
> rlm_eap: Loaded and initialized type tls
>  peap: default_eap_type = "mschapv2"
>  peap: copy_request_to_tunnel = no
>  peap: use_tunneled_reply = no
>  peap: proxy_tunneled_request_as_eap = yes
> rlm_eap: Loaded and initialized type peap
>  mschapv2: with_ntdomain_hack = no
> rlm_eap: Loaded and initialized type mschapv2
> Module: Instantiated eap (eap)
> Module: Loaded preprocess
>  preprocess: huntgroups = "/usr/local/etc/raddb/huntgroups"
>  preprocess: hints = "/usr/local/etc/raddb/hints"
>  preprocess: with_ascend_hack = no
>  preprocess: ascend_channels_per_line = 23
>  preprocess: with_ntdomain_hack = no
>  preprocess: with_specialix_jetstream_hack = no
>  preprocess: with_cisco_vsa_hack = no
> Module: Instantiated preprocess (preprocess)
> Module: Loaded realm
>  realm: format = "suffix"
>  realm: delimiter = "@"
>  realm: ignore_default = no
>  realm: ignore_null = no
> Module: Instantiated realm (suffix)
> Module: Loaded files
>  files: usersfile = "/usr/local/etc/raddb/users"
>  files: acctusersfile = "/usr/local/etc/raddb/acct_users"
>  files: preproxy_usersfile = "/usr/local/etc/raddb/preproxy_users"
>  files: compat = "no"
> Module: Instantiated files (files)
> Module: Loaded Acct-Unique-Session-Id
>  acct_unique: key = "User-Name, Acct-Session-Id, 
> NAS-IP-Address, Client-IP-Address, NAS-Port"
> Module: Instantiated acct_unique (acct_unique)
> Module: Loaded detail
>  detail: detailfile = 
> "/var/log/radacct/%{Client-IP-Address}/detail-%Y%m%d"
>  detail: detailperm = 384
>  detail: dirperm = 493
>  detail: locking = no
> Module: Instantiated detail (detail)
> Module: Loaded radutmp
>  radutmp: filename = "/var/log/radutmp"
>  radutmp: username = "%{User-Name}"
>  radutmp: case_sensitive = yes
>  radutmp: check_with_nas = yes
>  radutmp: perm = 384
>  radutmp: callerid = yes
> Module: Instantiated radutmp (radutmp)
> Listening on authentication *:1812
> Listening on accounting *:1813
> Ready to process requests.
> rad_recv: Access-Request packet from host 
> 192.168.50.127:3337, id=18, length=48
> 	User-Name = "burst01"
> 	CHAP-Password = 0xcb043904b29de0427e32dc343c1db5ac22
>   Processing the authorize section of radiusd.conf
> modcall: entering group authorize for request 0
>   modcall[authorize]: module "preprocess" returns ok for request 0
>   rlm_chap: Setting 'Auth-Type := CHAP'
>   modcall[authorize]: module "chap" returns ok for request 0
>   modcall[authorize]: module "mschap" returns noop for request 0
>     rlm_realm: No '@' in User-Name = "burst01", looking up realm NULL
>     rlm_realm: No such realm "NULL"
>   modcall[authorize]: module "suffix" returns noop for request 0
>   rlm_eap: No EAP-Message, not doing EAP
>   modcall[authorize]: module "eap" returns noop for request 0
>     users: Matched entry DEFAULT at line 152
>   modcall[authorize]: module "files" returns ok for request 0
> modcall: leaving group authorize (returns ok) for request 0
>   rad_check_password:  Found Auth-Type CHAP
> auth: type "CHAP"
>   Processing the authenticate section of radiusd.conf
> modcall: entering group CHAP for request 0
>   rlm_chap: login attempt by "burst01" with CHAP password
>   rlm_chap: Could not find clear text password for user burst01
>   modcall[authenticate]: module "chap" returns invalid for request 0
> modcall: leaving group CHAP (returns invalid) for request 0
> auth: Failed to validate the user.
> Delaying request 0 for 1 seconds
> Finished request 0
> Going to the next request
> --- Walking the entire request list ---
> Waking up in 1 seconds...
> --- Walking the entire request list ---
> Waking up in 1 seconds...
> --- Walking the entire request list ---
> Sending Access-Reject of id 18 to 192.168.50.127 port 3337 
> Waking up in 4 seconds...
> --- Walking the entire request list ---
> Cleaning up request 0 ID 18 with timestamp 443bc5b9 Nothing 
> to do.  Sleeping until we see a request.
> 
> I think I'll put a protocol analyser on this (when I've time) 
> and see what is passing between the PC and RADIUS and what 
> (if anything) is passing between RADIUS and AD.
> 
> Steve.
> 
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