[Samba] Strange KVNO updating
bruno.macadre at univ-rouen.fr
Wed Oct 1 23:25:09 MDT 2014
Le 02/10/2014 00:07, Matthieu Patou a écrit :
> Hi Bruno,
> On 09/30/2014 11:12 PM, Bruno MACADRÉ wrote:
>> I'm working in an educational environment so I've some
>> obligations that complicate my work. For example in all rooms of
>> practical class all the workstations are in dual boot (Win7 + XUbuntu
>> 14.04). I've tried 2 solutions :
>> 1- Setting the same hostname to both OS, joigning Win7 to AD
>> and using the created (by joining) keytab on linux side for sssd.
>> 2- Setting different hostname to both OS, joigning Win7 to AD
>> and joigning linux to AD, using winbind for users and groups.
>> I've chosen the first one (may be it's not the better
>> choice....), but actually I'm facing a strange problem... some times
>> my keytab on the Samba4 server is updated (KVNO incremented) without
>> any human intervention.... so my sssd on linux side can't speak with
>> the server anymore....
> Is Samba4 your AD DC ?, if so when you say that the keytab is updated
> is not really that it's the info stored in the computer object that
> are changed (and amongst them the kvno).
Yes I'm in Samba4 so I suppose that the keytab appears to be changed
'cause the computer object was modified.
>> Is anybody know why a keytab can change internaly ?
>> Can Win7 change keytab (refresh or modify or anything else) when
>> any user using it ?
> Windows machine are changing periodically their password, when the
> password is changed the kvno is also changed.
It's I supposed but I'm not advanced enough in win admin to know
why..... this answer confirms my idea.
>> I just want to understand why I have to upload new keytab on
>> linux side frequently ?
>> I know this problem isn't really a samba problem, but I hope that
>> somebody on this list knows this behaviour...
> You can create a GPO that will apply only on Computers to disable
> password change.
If it's possible to disable password changing I will do that
Thanks a lot for your answers, it's what I've searched for long days !
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