[Samba] Samba crashes and won't restart

Alexander Harm || ApfelQ alexander.harm at apfelq.com
Tue Jun 21 22:33:26 UTC 2022

Hi Rowland,

you are right. The user dcadmin has the SID S-1-5-domain-500.

However, I cannot remember ever changing its name. Maybe this is a Windows thing? I did setup Windows not using the default Administrator but as dcadmin. It probably just took that username when setting up the AD later.

I renamed the user now to “Administrator”. Hope that helps.

I also removed the additional DNS-Server completely, so all DCs just point to themselves.

Thanks for all your input. I will monitor and come back if the issue occurs again.

Regards, Alexander

> On Tuesday, Jun 21, 2022 at 5:06 PM, Rowland Penny via samba <samba at lists.samba.org (mailto:samba at lists.samba.org)> wrote:
> On Tue, 2022-06-21 at 16:36 +0200, Alexander Harm via samba wrote:
> > Nope. We have one main WinAD. The Samba DCs were joined to this Win
> > AD which never had the user Administrator, never ever.
> Are you sure about that ?
> 'Administrator' is one of the 'Well Known SIDs' and always has the SID
> S-1-5-domain-500 . I think you may find that when the domain was
> created that 'Administrator' was renamed.
> >
> > The setup ran fine for a couple of years now and still does on the
> > other samba dcs…
> If it works on other Samba DC's, then I would compare a working DC with
> your non working DC.
> >
> > Should I add Administrator to de AD?
> I would check if 'dcadmin' is 'Administrator' renamed (even if you
> think it isn't), the RID '500' will confirm this, one way or another.
> Rowland
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