[Samba] Winbind question

Bruno MACADRÉ bruno.macadre at univ-rouen.fr
Tue Aug 12 03:21:50 MDT 2014

I can't be totally affirmative, but with the mechanism of rid backend it 
would be consistent.

If I well understand the mechanism of rid backend (correct me if I say 
wrong), it works like this :

For a user or a group :
     - Requesting the DC for the objectSID of the user (or group)
     - Keeping RID part of the SID
     - Adding RID part to the minimal ID specified in 'SAMDOM:range'
     - Using result as UID/GID

So it would be consistent, 'cause SID are uniques (and by extension RID 
too) and if your 'SAMDOM:range' is the same on all members the resulting 
UID/GID would be the same.

I don't want to say wrong things to you steve, so if anybody with a 
better knowledge of this mechanism can confirm (or not), it would be great.


Le 12/08/2014 10:27, steve a écrit :
> On Tue, 2014-08-12 at 07:57 +0200, Bruno MACADRE wrote:
>>> 2) For me, using "rid" as backend for consistent gid/uid mapping works
>>> across multiple samba. I wasn't able to get "ad" to work nicely.
>> That's right, RID backend is sufficient to get consistent gid/uid
>> mapping...
> Hi
> That's interesting. How do you ensure that the databases are
> synchronised between the DCs, file servers and clients?


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