Domain Name System In Network Programming. The Domain Name System DNS is a hierarchical and decentralized naming system for computers services or other resources connected to the Internet or a private network. To provide a unique DNS name for every host computer on the Internet DNS uses a time-tested technique.
DNS is a name service that provides a standardized system for providing names to identify TCPIP hosts as well as a way to look up the IP address of a host given the hosts DNS name. DNS resolves names to numbers to be more specific it resolves domain names to IP addresses. The Domain Name System DNS is the scheme by which millions of Internet hosts cooperate to answer the question of what hostnames resolve to which IP addresses.
Each node in a tree has a domain name and a full domain name is a sequence of symbols specified by dots.
Remember that the primary purpose of DNS is to resolve host and domain names into IP addresses. Remember that the primary purpose of DNS is to resolve host and domain names into IP addresses. DNS Domain Name System Name service in Internet Zone is an administrative unit domain is a subtree. Name to Address Resolution The host request the DNS name server to resolve the domain name.