[Samba] "failed to lookup DC info for domain over rpc" when joining samba4 domain

Richard Connon richard at connon.me.uk
Mon Mar 9 15:52:33 MDT 2015

Hi again,

Seems you can't attach items to mails on this list so here's the debug log:


On 09/03/2015 21:33, Richard Connon wrote:
> Hi,
> I have an existing samba4 domain with 2 domain controllers on different
> sites.
> Both domain controllers are running samba 4.1.17
> Until recently the domain operated exactly as expected. I recently tried
> to join a new machine to the domain and received the error:
> Failed to join domain: failed to lookup DC info for domain
> 'ADS.CONNON.ME.UK' over rpc
> I'm not sure what has triggered this change in behaviour. Authentication
> against the domain still works as normal.
> I've attached a full debug log of the domain join process.
> Anyone got any ideas where I should be looking?
> Regards,
> Richard

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