freeradius and ntlm_auth howto

Mon Nov 6 16:16:45 CET 2006

michael,
The configuration works when i type in my username as 'username at domain', 
when i let windows fill it in i don't get in.
My password gets locked after 3 attempts, and the wifi retries several 
times. If you look higher in the file you will see another error:(logon 
failure)

It works with the standard certs, so for finding a good working 
configuration this is ok for now. Obviously i will change this for 
production.

Stieven Struyf
M.I.S. Division - System Operations 
Komatsu Europe International NV
Mechelsesteenweg 586
B-1800 Vilvoorde
Stieven.Struyf at komatsu.eu
Tel. +32 (0)2 2552551

"King, Michael" <MKing at bridgew.edu> 
11/06/2006 04:04 PM

To
<Stieven.Struyf at komatsu.eu>, "FreeRadius users mailing list" 
<freeradius-users at lists.freeradius.org>
cc

Subject
RE: freeradius and ntlm_auth howto

Some things I've noticed from your attached files

Module: Loaded MS-CHAP 
 mschap: use_mppe = yes
 mschap: require_encryption = yes
 mschap: require_strong = yes

I've never enabled these before, I'm unaware what affect they will have

tls: pem_file_type = yes
 tls: private_key_file = "/etc/raddb/certs/cert-srv.pem"
 tls: certificate_file = "/etc/raddb/certs/cert-srv.pem"
 tls: CA_file = "/etc/raddb/certs/demoCA/cacert.pem"
 tls: private_key_password = "whatever"
 tls: dh_file = "/etc/raddb/certs/dh"
 tls: random_file = "/etc/raddb/certs/random"

Did you generate your OWN certs...  They one's that ship with the server 
ARE NOT vailid. You have to generate your own.

rlm_eap: Loaded and initialized type peap
 mschapv2: with_ntdomain_hack = no
rlm_eap: Loaded and initialized type mschapv2

That doesn't look right

BUT YOUR FINAL ANSWER:

xec-Program: /usr/bin/ntlm_auth --request-nt-key --username=sstruyf 
--challenge=b9ee04ca891c7b7d 
--nt-response=79b960c773fa101929d3bf8e738168e8b6d8ae8cd61f64f0
Exec-Program output: Account locked out (0xc0000234) 
Exec-Program-Wait: plaintext: Account locked out (0xc0000234) 
Exec-Program: returned: 1
  rlm_mschap: External script failed.
  rlm_mschap: FAILED: MS-CHAP2-Response is incorrect

Your account in the domain is not correct.

Looks like it's been disabled or something.

Fix that first before you change anymore config files.

From: Stieven.Struyf at komatsu.eu [mailto:Stieven.Struyf at komatsu.eu] 
Sent: Monday, November 06, 2006 3:16 AM
To: King, Michael
Subject: Fw: freeradius and ntlm_auth howto

Michael, 
I sent my reply already to the list, but due to the size(larger than 100k) 
it had to be reviewed by the admin and after a week it was rejected. 
Below you can find the mail. Thanks for helping me. 

Stieven Struyf
M.I.S. Division - System Operations 
Komatsu Europe International NV
Mechelsesteenweg 586
B-1800 Vilvoorde
Stieven.Struyf at komatsu.eu
Tel. +32 (0)2 2552551 
----- Forwarded by Stieven Struyf/KEISA/BE/KOMEUR on 11/06/2006 09:13 AM 
----- 
Stieven Struyf/KEISA/BE/KOMEUR 
11/02/2006 08:55 AM 

To
FreeRadius users mailing list <freeradius-users at lists.freeradius.org> 
cc

Subject
RE: freeradius and ntlm_auth howtoLink

I added the debuglog as attachment(as it is a little large to paste here). 

This is the mschap config: 
 mschap { 
                authtype = MS-CHAP 
                use_mppe = yes 
                require_strong = yes 
                with_ntdomain_hack = yes 
                require_encryption = yes 
                ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key 
--username=%{mschap:User-Name} --challenge=%{mschap:Challenge} 
--nt-response=%{mschap:NT-Response}" 
        } 

Stieven Struyf
M.I.S. Division - System Operations 
Komatsu Europe International NV
Mechelsesteenweg 586
B-1800 Vilvoorde
Stieven.Struyf at komatsu.eu
Tel. +32 (0)2 2552551 

freeradius-users-bounces+stieven.struyf=komatsu.eu at lists.freeradius.org 
wrote on 10/27/2006 04:36:00 PM:

> Let's see if we can get this solved... 
> 
> > -----Original Message-----
> > Here's the full log: 
> > Waking up in 6 seconds... 
> > rad_recv: Access-Request packet from host 10.104.254.73:1645, 
> 
> This is NOT the full log.  The full log would have started with the line
> /path/to/radiusd -X
> 
> Some important stuff is printed out there, it helps us help you. 
> 
> 
> >   rlm_mschap: NT Domain delimeter found, should we have 
> > enabled with_ntdomain_hack? 
> >   rlm_mschap: NT Domain delimeter found, should we have 
> > enabled with_ntdomain_hack? 
> 
> Did you enable Ntdomain Hack in the MSCHAP module?  (See below)
> 
> 
> Including your radius.conf file would help.
> 
> 
> > > HOWEVER, first you may want to check your mschap module definition:
> > > 
> > > modules {
> > >    mschap {
> > >      ntlm_auth = "/usr/bin/ntlm_auth \
> > >   --request-nt-key \
> > >   --username=%{mschap:User-Name:-None} \
> > >   --domain=%{mschap:NT-Domain:-None} \
> > >   --challenge=%{mschap:Challenge:-00} \
> > >   --nt-response=%{mschap:NT-Response:-00}"
> > > 
> > > ...all on one line of course. Note the use of the 
> > "mschap:User-Name" 
> > > and "mschap:NT-Domain" values.
> 
> Mine radiusd.conf file's mschap section looks like this:
> NOTE that I do NOT have the :-00 and the :-None statements, and I DO
> have with_ntdomain_hack=yes
> 
> 
>         # Microsoft CHAP authentication
>         #
>         #  This module supports MS-CHAP and MS-CHAPv2 authentication.
>         #  It also enforces the SMB-Account-Ctrl attribute.
>         #
>         mschap {
>                 with_ntdomain_hack = yes
>          ntlm_auth = "/usr/bin/ntlm_auth \
>          --request-nt-key \
>          --username=%{mschap:User-Name} \
>          --challenge=%{mschap:Challenge} \
>          --nt-response=%{mschap:NT-Response}
>         }
> 
> 
> - 
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http://www.freeradius.org/list/users.html
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