[Samba] No 'user' in authentication process. only guest access

Mac mac at nibsc.ac.uk
Mon Mar 19 12:52:09 GMT 2007

Hi all,

	We've recently upgraded our main production Samba server (Solaris
9) to 3.0.24 (compiled from source)

We're now getting a spate of problesm which look like:-

[2007/03/19 12:02:11, 3, pid=436] smbd/sesssetup.c:reply_sesssetup_and_X_spnego(691) NativeOS=[Windows 2002 Service Pack 2 2600] NativeLanMan=[Windows 2002 5.1] PrimaryDomain=[]
[2007/03/19 12:02:11, 3, pid=436] libsmb/ntlmssp.c:ntlmssp_server_auth(672) Got user=[] domain=[] workstation=[68S7C1J] len1=1 len2=0

the transaction then goes onwards to contact the DC (seemingly OKay) and

[2007/03/19 12:02:16, 3, pid=436] auth/auth.c:check_ntlm_password(270) check_ntlm_password: guest authentication for user [] succeeded

Not really surprising that it's authenticated user '' as guest.  but not
helpful either.

I don't know for certain that this is the first event in the chain, I
only turned debugging up on one smbd process after the problem became

It's not happening on all connections, nor to all users.

We're looking at generating a level 10 log of the issue, but it's time
for lunch just now and I'm starving.

I couldn't find anything like this elsewhere.

          Assistant Systems Administrator @nibsc.ac.uk
                           mac at nibsc.ac.uk
   Work: +44 1707 641565          Everything else: +44 7956 237670 (anytime)

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