DNS reverse proxy

I have a server with a single IPv4 and I want to run two DNS servers:

• one to serve zones like stalkr.net - if you recall, I like PowerDNS;
• another one for tunneling - I like dns2tcp (TCP level), another good one is iodine (IP level).

Problem: I looked a bit but none of the DNS server software I've seen support forwarding queries that aren't for them to another server. Basically what I need is a reverse proxy that looks at the DNS query, and route it based on the name. It's the same as an HTTP reverse proxy that looks at the Host field to proxy the request to another server. I tried to hack with resolvers and stub/forward zones but it didn't work.

So I made my own dns-reverse-proxy in just a few lines of Go, using a fully featured DNS library. It's running smoothly, if you have the same need feel free to use it!

Going DNSSEC, Unbound and PowerDNS

stalkr.net is now signed with DNSSEC! In this post I will quickly describe what is DNSSEC and why I chose to deploy it, then my choice of Unbound as a resolver and PowerDNS as a server and finally give a few resources about this topic.