Nsdns
From AOLserver Wiki
Author Vlad Seryakov.
This is AOLserver module that implements DNS server/proxy. It can serve from it own database or perform forwarding to another DNS server and cache results. The server doesn't support any database directly, instead it provides commands similar route add|del to add/remove DNS records to memory cache.
Download: http://www.crystalballinc.com/vlad/software/
