[Pdns-users] PDNS Authoritative and CNAME pointing to external Domain responds with NXDOMAIN

[Brian Candler]

On 22/06/2021 16:16, Thomas via Pdns-users wrote:
> Thanks for the clarification, but this scares me. How can I have 
> configured the server in a way it thinks it is authoritative for the 
> entire Internet?
> It should be authoritative for zur-sonne.it and the other 2500 domains 
> we have, sihosting.cloud is not part of the domains we host....

Check your configs and database, see if you have a zone "" or "."

As misconfigurations go, this isn't a very scary one.  You should never 
be receiving queries at this nameserver for domains that you're not 
authoritative for - that is, unless someone has wrongly pointed NS 
records at this server.

However it might trip you up if you point one of your *own* domains at 
this server, but haven't yet added the zone, and some proportion of 
queries which hit this server get an authoritative NXDOMAIN response, 
which the user will see as "this site cannot be reached" or similar.