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Re: [Samba] Keeping idmap in sync cross DC




On Wed, 22 Nov 2017 16:01:17 +0200
Ian Coetzee via samba <samba@xxxxxxxxxxxxxxx> wrote:

> Hi Guys,
> 
> I have run into a very interesting problem using GPO's on our DC's.
> 
> As you may (or may not) know, we have migrated to a pure Samba4 (Git
> stable branch checkout) AD network. I can't be happier. *Kudos to the
> Samba team*
> 
> We are running to DC's, DC1 and DC2, both full fledged DC's, both
> running CentOS 6.9, fully up to date.
> 
> For the sysvol partition I decided to run a glusterfs between the
> DC's. I started out with a unison sync, but being the impatient
> person I am, I needed more real time.
> 
> Now my problem is with the permissions in the sysvol folder structure.
> 

Sorry, but your problem is that you missed this:

https://wiki.samba.org/index.php/Bidirectional_Rsync/osync_based_SysVol_replication_workaround#FAQ

Where it quite clearly says this:

     Why can't I simply use a distributed filesystem like GlusterFS, Lustre, etc. for SysVol?
        A cluster file system with Samba requires CTDB to be able to do it safely. And CTDB and AD DC are incompatible. 

Rowland





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