NSD - Name Server Daemon

Ack! Now here's a good replacement for BIND if your requirements aren't too heavy. It's a high-performance authoritative name server. Being authoritative is good I guess since it

• separates cached & authoritative data
• simplifies the software
• avoids BIND bugs and security flaws

It caters to the security conscious with DNSSEC. I've yet to try it - looks promising, tho'.