[Samba] Recurrent DNS issues after DC loss

lingpanda101 lingpanda101 at gmail.com
Tue Jun 5 18:39:48 UTC 2018

On 6/5/2018 2:11 PM, Ole Traupe via samba wrote:
> Hi list,
> I have a domain in production on two sites (subnets, via "Sites and 
> Services") with originally two DCs. One went down due to HDD (-> old 
> hardware) error. Now, occasionally, clients cant access/find the file 
> server (domain member). This does not occur on all clients at the same 
> time, however, so I am rather sure it is not the file server itself, 
> but a DNS problem.
> I couldn't find anything diagnostic in the logs. Default log level was 
> not informative, I think, while log level 10 I just could not 
> handle/analyze properly.
> Can someone recommend a log level? Should I look on the DC or on the 
> file server?
> Do I have to remove the offline DC completely from DNS and Sites and 
> Services for this mess to stop?
> I appreciate any advice.
> Cheers,
> Ole

     If you haven't already removed the dead DC from your network you 
should do that first.


Your clients DNS may still be pointing to the offline DC causing look up 
delays. Also did you have your DC's pointing to themselves for DNS or 
each other?


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