geographically-aware, authoritative-only DNS server
gdnsd is an Authoritative-only DNS server. The initial g stands for Geographic, as gdnsd offers a plugin system for geographic (or other sorts of) balancing, redirection, and service-state-conscious failover. The plugin system can also do things like weighted address/cname records.
Homepage: https://gdnsd.org/
Maintainer: Joerg Jung <jung@openbsd.org>