Unbound is an implementation of a DNS resolver that does caching and DNSSEC validation. It’is written and maintained by NLnet Labs. It’s recursive and caching so if you need an authoritative DNS nameserver please consider…

NSD  is  a  complete  implementation of an authoritative DNS nameserver written and maintained by NLnet Labs. Authoritative and not recursive. If you need a recursive and caching resolver please consider using Unbound and reading my article “How…