[Samba] [EXTERNAL] Fwd: ntlm_auth and freeradius

Tim ODriscoll tim.odriscoll at lambrookschool.co.uk
Mon Apr 3 15:08:33 UTC 2023


> I guess we have to look at the conf files then, first these two:

Thank you for the config file snippets. I can confirm mine were almost identical, so I've tweaked them so that they are now exactly the same as yours except for the "--require-membership-of=example\authorization_groupname" line in ntlm_auth.

Unfortunately it's still erroring out:
(7) mschap: Creating challenge hash with username: host/SL-6S4BBS3.MYDOMAIN.co.uk
(7) mschap: Client is using MS-CHAPv2
(7) mschap: Executing: /usr/bin/ntlm_auth --request-nt-key --username=%{%{mschap:User-Name}:-00} --allow-mschapv2 --domain=MYDOMAIN --challenge=%{%{mschap:Challenge}:-00} --nt-response=%{%{mschap:NT-Response}:-00}:
(7) mschap: EXPAND --username=%{%{mschap:User-Name}:-00}
(7) mschap:    --> --username=SL-6S4BBS3$
(7) mschap: Creating challenge hash with username: host/SL-6S4BBS3.MYDOMAIN.co.uk
(7) mschap: EXPAND --challenge=%{%{mschap:Challenge}:-00}
(7) mschap:    --> --challenge=b45bc6ef86e0331a
(7) mschap: EXPAND --nt-response=%{%{mschap:NT-Response}:-00}
(7) mschap:    --> --nt-response=a3748d3de88efabcf966a1740cb27a279d8923ebfac30d89
(7) mschap: ERROR: Program returned code (1) and output 'The attempted logon is invalid. This is either due to a bad username or authentication information. (0xc000006d)'
(7) mschap: External script failed
(7) mschap: ERROR: External script says: The attempted logon is invalid. This is either due to a bad username or authentication information. (0xc000006d)
(7) mschap: ERROR: MS-CHAP2-Response is incorrect

Did you have to change any other config files?

Thank you,
Tim


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