PowerDNS Recursor is a resolving DNS server, that runs as a separate process. The authoritative pdns_server can be configured to proxy recursive queries to the recursor, and optionally overlay authoritative zone data.
The Recursor is used by several of the largest Internet providers of the world, including AOL, Shaw Cable and Neuf Cegetel.
1. Install the pdns-recursor package
apt-get install pdns-recursor
2. Configure the server to listen to all interfaces and allow queries from the local network (pico /etc/powerdns/recursor.conf)
Replace 192.168.1.0/24 with your local network or the network allowed to query the resolving NS server.
3. Restart the DNS server