||The DnsClient class performs DNS client operations in support of DnsContext.
||A DnsContext is a directory context representing a DNS node.
||A DnsContextFactory serves as the initial context factory for DNS.
||DnsName implements compound names for DNS as specified by
RFCs 1034 and 1035, and as updated and clarified by RFCs 1123 and 2181.
||A DnsUrl represents a DNS pseudo-URL of the form
The host names a DNS server.
||The ResourceRecord class represents a DNS resource record.