[Samba] How to move NT4-Domain from one samba-PDC to another

[Andrew Bartlett]

On Tue, 2014-01-14 at 14:06 +0100, Stefan G. Weichinger wrote:
> Am 14.01.2014 13:55, schrieb Andrew Bartlett:
> > On Tue, 2014-01-14 at 12:36 +0100, Stefan G. Weichinger wrote:
> >> Could someone please point me at the current best practice to move an
> >> existing Samba-NT4-Domain from one samba-PDC to another?
> >>
> >> I have to move over ... the old server gets substituted.
> >>
> >> The current PDC runs Samba 3.5.11 and has its data in tdb-files, not in
> >> LDAP. The new server runs Samba 3.6.22 if that is important in any way.
> >> (both servers on gentoo linux)
> >>
> >> This is a rather small domain with around 20 users/machines ...
> >>
> >> As far as I understand I will have to copy over stuff like
> >> /var/lib/samba etc ... and make sure to keep up the SID ("net
> >> getlocalsid" ..).
> > 
> > That's pretty much all that is required.  If you keep the same hostname,
> > then the SID will stay the same, because Samba really won't know the
> > difference, but regardless just check and set it if it changes on you. 
> 
> 
> 
> Is it problematic to change the hostname?

It shouldn't be a problem, as in our 'classic' domain code we don't have
a 'self join' of the DC to it's own domain. 

> We wanted a new host in parallel of the old, so there are 2 different
> linux-hostnames ...
> 
> I assume I will then have to
> 
> "net getlocalsid" -> "net setlocalsid"

Yes (maybe, it should not need it, but always best to be safe here). 

Andrew Bartlett

-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba