[Samba] Demote/Promote Samba DC

Peter Pollock peter.pollock at kingschristian.org
Tue Apr 20 23:19:58 UTC 2021

Looking more carefully, I saw it was seeing itself as the DC to use for the
domain join. I stopped the samba-ad-dc service and cleared the .tdb files
and now when I try again I get this error:

itadmin at dc11:~$ sudo samba-tool domain join internal.kcs DC
INFO 2021-04-20 16:08:23,787 pid:763
/usr/lib/python3/dist-packages/samba/join.py #107: Finding a writeable DC
for domain 'internal.kcs'
ERROR: Failed to find a writeable DC for domain 'internal.kcs': The object
name is not found.

I demoted it because I was having trouble resolving names in the local
domain. I'm guessing this means it still cannot do so.

Is there anything obvious I can try or should I just wipe the server and
start again?

On Tue, Apr 20, 2021 at 2:40 PM Peter Pollock <
peter.pollock at kingschristian.org> wrote:

> Is there a full procedure somewhere for demoting and promoting a DC?
> I followed the demote procedure on the Samba Wiki
> https://wiki.samba.org/index.php/Demoting_a_Samba_AD_DC
> But when I try to promote again it says the CN Name already exists. I'm
> sure I'm missing a step or two.

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