2. NsdThe NLnet Labs Name Server Daemon (NSD) is an authoritative, RFC compliant DNS nameserver.
3. LdnsLDNS is a DNS library that facilitates DNS tool programming
4. KrillRPKI Certificate Authority and Publication Server written in Rust
5. UnboundUnbound is a validating, recursive, and caching DNS resolver.
7. unbound.oldUnbound is a validating recursive DNS resolver. This is an old export of the subversion repository. For the current export, please use