The dns.nameserver.Nameserver Classes
The dns.nameserver.Nameserver abstract class represents a remote recursive resolver,
and is used by the stub resolver to answer queries.
The dns.nameserver.Do53Nameserver Class
The dns.nameserver.Do53Nameserver class is a dns.nameserver.Nameserver class used
to make regular UDP/TCP DNS queries, typically over port 53, to a recursive server.
The dns.nameserver.DoTNameserver Class
The dns.nameserver.DoTNameserver class is a dns.nameserver.Nameserver class used
to make DNS-over-TLS (DoT) queries to a recursive server.
The dns.nameserver.DoHNameserver Class
The dns.nameserver.DoHNameserver class is a dns.nameserver.Nameserver class used
to make DNS-over-HTTPS (DoH) queries to a recursive server.
The dns.nameserver.DoQNameserver Class
The dns.nameserver.DoQNameserver class is a dns.nameserver.Nameserver class used
to make DNS-over-QUIC (DoQ) queries to a recursive server.