Fqdn normalize domain make sure it ends with '.'.

New creates a new DNS server with given configuration.

NewDoHLocalNameServer creates DOH client object for local resolving.

NewDoHNameServer creates DOH client object for remote resolving.

NewStaticHosts creates a new StaticHosts instance.

DoHNameServer implimented DNS over HTTPS (RFC8484) Wire Format, which is compatiable with traditional dns over udp(RFC1035), thus most of the DOH implimentation is copied from udpns.go.

IPOption is an object for IP query options.

IPRecord is a cacheable item for a resolved domain.

MultiGeoIPMatcher for match.

Server is a DNS rely server.

StaticHosts represents static domain-ip mapping in DNS server.

Client is the interface for DNS client.