[Samba] windows 7 samba domain

Ufficiotecnico Acknow Srl ufficiotecnico at acknow.it
Tue Jul 6 06:38:50 MDT 2010

A strange thing is that i have three domain with samba 3 and windows 7 
client, in two of this scenario no problem: opensuse + samba 
samba3-3.3.10-40 and centos + samba samba3-3.3.12-40  while with sles 10 
and samba3-3.2.15-40 the problem persist,  the field password last set 
in the scenario with no problem is 1 month earlier while in the 
problematic domain is setted with the date of login.

Il 06/07/2010 13:33, Anselm Heaton ha scritto:
> On Monday 05 July 2010 09:14:47 Ufficiotecnico Acknow Srl wrote:
>> Hi,
>> I succesfuly joined five windows 7 client to a samba (version
>> 3-3.2.15-40) domain with passdb backend = tdbsam, the client works
>> correctly, user domain, network share printers etc, after 2 weeks the
>> client does not access to domain, with this error: the trust
>> relationship between this workstation and the primary domain failed, to
>> resolve I remove the client from domain and join again, the problem
>> reappears after a few days.
> I have a similar problem with Samba 3.4.0, running on an Ubuntu server. I have
> seen this problem reported a number of times (on this list and elsewhere), but
> I have not seen any solution for it yet (still searching!). It seems to affect
> a number of people, but not all - some setups with Windows 7 work fine.
>> I read in a forum that could be a cache password  problem related with
>> nscd, now i disabled service ncsd and enable winbind.
> I noticed after a trust relationship had broken that this machine's trust
> password had changed on the same day. I assume this is linked, though I am not
> sure who initiates this password change - is it Samba or is it the Windows 7
> computer ?
> Here is a scenario I noticed :
> 1. User logs on fine in the morning ;
> 2. The pdb entry for that user suggests that the machine account password gets
> changed after the user has logged in ;
> 3. After a restart, the machine complains of a broken trust relationship.
> For instance here is the entry for a machine that was reported to have lost
> it's trust relation ship on Friday 2nd of July. The 'Password last set' field
> corresponds roughly to the time the user logged on. After restart, the trust
> relationship was broken :
> # pdbedit -Lv -u ct405$
> Unix username: CT405$
> NT username:
> Account Flags: [W ]
> User SID: S-1-5-21-4063849384-1695801231-3426977757-1029
> Primary Group SID: S-1-5-21-4063849384-1695801231-3426977757-513
> Full Name: CT405$
> Home Directory: \\xxxx\ct405_
> HomeDir Drive: H:
> Logon Script: ct405_.bat
> Profile Path: \\xxxx\Profiles\ct405_
> Domain: xxxxxx
> Account desc:
> Workstations:
> Munged dial:
> Logon time: 0
> Logoff time: never
> Kickoff time: never
> Password last set: Fri, 02 Jul 2010 09:20:39 BST
> Password can change: Fri, 02 Jul 2010 09:20:39 BST
> Password must change: never
> Last bad password : 0
> Bad password count : 0
> I don't know if any of this can help people suggest a fix. If you have ideas of
> things I could try, or would like me to run some tests, I will be more than
> happy to oblige !
> Thanks,
> Anselm

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