[Samba] "Samba 4" - "smbd"; "can't parse the PAC: NT_STATUS_BUFFER_TOO_SMALL" error but only for a single domain user ("Server 2008 R2" domain, "Server 2008" functional level forest).

Tris Mabbs TM-Samba201302 at Firstgrade.Co.UK
Mon Feb 25 06:25:08 MST 2013

Hiya Michael,


Many thanks for the quick and helpful response.


Yes, I can certainly try a packet capture; I think I'll go with your other
suggestion first though, that of using "git bisect" to track down the
problematic version.

I'm sorry, that should have occurred to me .

Once I've identified the problematic version, I can post that information
and then start capturing packets if necessary.  Who knows - finding where
the break occurred might make someone such as yourself slap your forehead in
a Homer Simpson like way ("Doh!") and say "Of *course*, that's what will
have done it ." :-).


It's not in a test environment; we don't run one here (the development work
we do doesn't require a separate test network), so this is on our production
network.  However I have considerable freedom in taking servers out of
service so long as it's not during the most active times, so I'm quite happy
to bounce versions around (and perform any other tests required).


As for what was common between the original and the re-created user - the
username.  That's it.  I didn't even bother setting up the description
information.   However I also tried renaming the account and the problem
still occurred, so I'm not at all sure exactly what is causing it.

I did originally set the password to be the same, but have since reset it
several times (to varying lengths; I know that shouldn't affect this sort of
problem but by then I was running out of ideas .).


You're also quite correct in that Samba shouldn't core dump.  However I
think I'll get to the bottom of this problem and then perhaps start a
separate thread on that, rather than obfuscating this one with multiple
problems.  So thanks for the thought - I'll raise a new problem for that
once this has been sorted.


I can't take that server down just at the moment - middle of the working day
here.  However I'll see whether I can switch versions around until I can
find the problem hopefully later on this-evening.


Once again, many thanks for the most helpful suggestions.  Watch this space
for the responses.



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