[Samba] Problem joining a Win2008R2 DC

Rowland Penny rpenny at samba.org
Wed Feb 7 15:21:27 UTC 2018

On Wed, 7 Feb 2018 15:55:49 +0100
Andreas Heinlein via samba <samba at lists.samba.org> wrote:

> Hello,
> this is now my second attempt to join a Windows Server 2008R2 DC to a
> samba AD domain. I had to forcibly remove the first 2k8 DC from the
> domain after I messed it up completely in the first try. I followed
> "Demoting an Offline Domain Controller" from the wiki here.
> This time joining fails right during running dcpromo. I get the error
> that it could not replicate "cn=Configuration,dc=domain,dc=com"
> because "The DSA operation is unable to proceed because of a DNS
> lookup failure". I have set the first DNS on the 2k8 machine to its
> own external address (not and the second to the samba DC.

Wrong way round ;-)
The computer to be joined should be pointing at the original DC, not


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