As part of my current One Big Beautiful VPN, I got a suggestion from one of the folks out on the interwebs to try out PowerDNS. I have never heard of it before and apparently it is quite powerful and has a lot of different ways to store DNS zone information. The only other three DNS servers I have worked with are Windows (ick!), BIND, and NSD/Unbound. Of the three I like NSD/Unbound the best but I am willing to learn something new.
I’m hesitant to run BIND because of its rather dubious security history. NSD and Unbound have much better security histories but are more strictly DNS and have less features like not supporting DynamicDNS which is really helpful for IPv6. So PowerDNS it will be.
I will also be learning about optimal routing, cost, and distance-vector stuff. All pretty advanced routing. But one thing at a time ultimately.