How do I set up simple AD integration?
Burton, Steven
sburton at shepherd-construction.co.uk
Tue Apr 11 17:14:43 CEST 2006
> -----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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