Home / server / Questions / 746120
Accepted
Xdg
Asked: 2016-01-01 02:33:18 +0800 CST

PowerDNS and ISP DNS server

  • 772

I'm using PowerDNS instance to serve my own domains. All clients in my network are using this DNS server.

How can I configure PowerDNS to query my ISP's DNS servers (for that domains that I don't know)? Is this the right way?

recursor=8.8.8.8:53
allow-recursion=10.0.0.0/8

Is it possible to specify multiple DNS servers? For example 8.8.8.8 and 8.8.4.4.

powerdns

1 Answers

  1. Best Answer

    Your syntax is essentially correct although for the default DNS port the :53 can be omitted. 

    recursor=8.8.8.8
allow-recursion=10.0.0.0/8

    Only a single server is supported as far as I'm aware, probably because the PowerDNS project is in agreement that it is considered a bad idea to combine an Authoritative nameserver with Recursing nameserver role as the manual states:

    Warning: Using recursor is NOT RECOMMENDED as it comes with many potentially nasty surprise. Background: http://cr.yp.to/djbdns/separation.html

    • 5