- 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).
Hostfield 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!