[Pdns-users] NAT PowerDNS Server

Brian Candler b.candler at pobox.com
Wed Oct 21 14:48:20 UTC 2020

On 21/10/2020 13:02, jurgen Isaacs via Pdns-users wrote:
> Our contractor setup two DNS servers each with internal and external 
> ip . We would like to bind all requests to the private ip and VIP the 
> public ip on the firewall to the internal private ip basically running 
> all request from outside via the firewall .
> Please can I get information on how to do it if possible and what 
> commands to use.
The comprehensive documentation is a good place to start: 

Your question isn't clear though, and I don't think you've really 
thought it through.

1. Are you talking about PowerDNS Recursor 
<https://docs.powerdns.com/recursor/settings.html> or PowerDNS 
Authoritative <https://docs.powerdns.com/authoritative/settings.html>?  
Which version?

2. On the one hand you say that the DNS servers have both an internal 
and external IP, which suggests there are two interfaces.  But then you 
talk about a firewall, and the subject line says "NAT".

For binding interfaces, see options "local-address" (for listening for 
queries) and "query-local-address" (for packets sent outbound to other 

However, it sounds to me like this is actually a networking problem, 
i.e. how to configure NAT on your firewall to forward traffic to and/or 
from PowerDNS.  If so, I don't think it's relevant to the PowerDNS 
community.  You would be better off talking to your local network 
administrator instead.



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