Freeradius and Active directory

Tomás( Janec(ek tomas.janecek at
Wed May 21 09:10:13 CEST 2008


Because we can authenticate against AD only (not only, but...) using 
MS-CHAP, I had to extend the system to its final form (I don't know any 
MS-CHAP testing utility):

[WinXP] -> [AP] -> [FreeRadius] -> [AD server]
(ie. I'm using wireless interface in Windows to connect to AP and 
authenticate against AD)

Everything looks good. I can see the request from AP and authentication 
activities it entails between FreeRadius and AD. But the authentication 
is never successful.

This is the request in radiusd -X:
rad_recv: Access-Request packet from host, id=0, 
         Message-Authenticator = 0x90afa24eace068c65cabf864bfd330e5
         Service-Type = Framed-User
         User-Name = "MYNTDOMAIN\\user"
         Framed-MTU = 1488
         Called-Station-Id = "00-1E-C1-30-51-C0:CCA2"
         Calling-Station-Id = "00-13-CE-3B-44-4F"
         NAS-Identifier = "3Com Access Point 7760"
         NAS-Port-Type = Wireless-802.11
         Connect-Info = "CONNECT 11Mbps 802.11b"
         EAP-Message = 0x02000010014b524b415645435c6a6165
         NAS-IP-Address =
         NAS-Port = 1
         NAS-Port-Id = "STA port # 1"
   Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
   modcall[authorize]: module "preprocess" returns ok for request 0
   modcall[authorize]: module "mschap" returns noop for request 0
radius_xlat: Running registered xlat function of module mschap for 
string 'User-Name'
radius_xlat: '--username=user'
radius_xlat: '--password='
   modcall[authorize]: module "ntlm_auth" returns ok for request 0
   modcall: leaving group authorize (returns ok)	for request 0
auth: No authenticate method (Auth-Type) configuration found for the 
Rejecting the user
auth: Failed to validate the user.
Login incorrect: [user/<no User-Password attribute>] (from client 
3com7760 port 1 cli 00-13-CE-3B-44-4F)
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 ---
Sending Access-Reject of id 0 to port 1122
Waking up in 4 seconds...
--- Walking the entire request list ---
Cleaning up request 0 ID 0 with timestamp 4833c099
Nothing to do.  Sleeping until we see a request.

The problem I see is "Login incorrect: [user/<no User-Password 
attribute>]". It looks like Windows doesn't send user's password. I 
followed the supplicant configuration part from

I know that this is not exactly FreeRadius question... Does anybody 
know, what is the problem, what to double check ... ?

radiusd -X :
notes ~ # radiusd -X
Starting - reading configuration files ...
reread_config:  reading radiusd.conf
Config:   including file: /etc/raddb/proxy.conf
Config:   including file: /etc/raddb/clients.conf
Config:   including file: /etc/raddb/snmp.conf
Config:   including file: /etc/raddb/eap.conf
Config:   including file: /etc/raddb/sql.conf
  main: prefix = "/usr"
  main: localstatedir = "/var"
  main: logdir = "/var/log/radius"
  main: libdir = "/usr/lib"
  main: radacctdir = "/var/log/radius/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/radius.log"
  main: log_auth = yes
  main: log_auth_badpass = yes
  main: log_auth_goodpass = yes
  main: pidfile = "/var/run/radiusd/"
  main: user = "radiusd"
  main: group = "radiusd"
  main: usercollide = no
  main: lower_user = "no"
  main: lower_pass = "no"
  main: nospace_user = "no"
  main: nospace_pass = "no"
  main: checkrad = "/usr/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
Using deprecated naslist file.  Support for this will go away soon.
read_config_files:  reading clients
read_config_files:  reading realms
radiusd:  entering modules setup
Module: Library search path is /usr/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 MS-CHAP
  mschap: use_mppe = yes
  mschap: require_encryption = yes
  mschap: require_strong = yes
  mschap: with_ntdomain_hack = yes
  mschap: passwd = "(null)"
  mschap: ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key 
--challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
Module: Instantiated mschap (mschap)
  exec: wait = no
  exec: program = "/usr/bin/ntlm_auth --request-nt-key 
--domain=MYNTDOMAIN --username=%{mschap:User-Name:-None} 
  exec: input_pairs = "request"
  exec: output_pairs = "(null)"
  exec: packet_type = "(null)"
Module: Instantiated exec (ntlm_auth)
Module: Loaded preprocess
  preprocess: huntgroups = "/etc/raddb/huntgroups"
  preprocess: hints = "/etc/raddb/hints"
  preprocess: with_ascend_hack = no
  preprocess: ascend_channels_per_line = 23
  preprocess: with_ntdomain_hack = yes
  preprocess: with_specialix_jetstream_hack = no
  preprocess: with_cisco_vsa_hack = no
  preprocess: with_alvarion_vsa_hack = no
Module: Instantiated preprocess (preprocess)
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 realm
  realm: format = "suffix"
  realm: delimiter = "@"
  realm: ignore_default = no
  realm: ignore_null = no
Module: Instantiated realm (suffix)
Module: Loaded files
  files: usersfile = "/etc/raddb/users"
  files: acctusersfile = "/etc/raddb/acct_users"
  files: preproxy_usersfile = "/etc/raddb/preproxy_users"
  files: compat = "no"
Module: Instantiated files (files)
Module: Loaded detail
  detail: detailfile = 
  detail: detailperm = 384
  detail: dirperm = 493
  detail: locking = no
Module: Instantiated detail (detail)
Module: Loaded System
  unix: cache = no
  unix: passwd = "(null)"
  unix: shadow = "(null)"
  unix: group = "(null)"
  unix: radwtmp = "/var/log/radius/radwtmp"
  unix: usegroup = no
  unix: cache_reload = 600
Module: Instantiated unix (unix)
Module: Loaded radutmp
  radutmp: filename = "/var/log/radius/radutmp"
  radutmp: username = "%{User-Name}"
  radutmp: case_sensitive = yes
  radutmp: check_with_nas = yes
  radutmp: perm = 384
  radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Module: Loaded eap
  eap: default_eap_type = "peap"
  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 = "/etc/raddb/certs/jaesrvkey.pem"
  tls: certificate_file = "/etc/raddb/certs/jaesrvcert.pem"
  tls: CA_file = "/etc/raddb/certs/jaecacert.pem"
  tls: private_key_password = "(null)"
  tls: dh_file = "/etc/raddb/certs/dh"
  tls: random_file = "/dev/urandom"
  tls: fragment_size = 1024
  tls: include_length = yes
  tls: check_crl = no
  tls: check_cert_cn = "(null)"
  tls: cipher_list = "(null)"
  tls: check_cert_issuer = "(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)
Listening on authentication *:1812
Listening on accounting *:1813
Ready to process requests.

Toma's( Janec(ek

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