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Internet name servers and a communication protocol implement the Domain Name System.A DNS name server is a server that stores the DNS records for a domain; a DNS name server responds with answers to queries against its database.An often-used analogy to explain the Domain Name System is that it serves as the phone book for the Internet by translating human-friendly computer hostnames into IP addresses.For example, the domain name to the addresses 188.8.131.52 (IPv4) and 260:c46 (IPv6).Each subdomain is a zone of administrative autonomy delegated to a manager.For zones operated by a registry, administrative information is often complemented by the registry's RDAP and WHOIS services.In 1984, four UC Berkeley students, Douglas Terry, Mark Painter, David Riggle, and Songnian Zhou, wrote the first Unix name server implementation for the Berkeley Internet Name Domain, commonly referred to as BIND.The domain name space consists of a tree data structure.
Users take advantage of this when they use meaningful Uniform Resource Locators (URLs), and e-mail addresses without having to know how the computer actually locates the services.
The Stanford Research Institute (now SRI International) maintained a text file named HOSTS.
TXT that mapped host names to the numerical addresses of computers on the ARPANET.
It defines the DNS protocol, a detailed specification of the data structures and data communication exchanges used in the DNS, as part of the Internet Protocol Suite.
The Internet maintains two principal namespaces, the domain name hierarchy The Domain Name System maintains the domain name hierarchy and provides translation services between it and the address spaces.
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Maintenance of numerical addresses, called the Assigned Numbers List, was handled by Jon Postel at the University of Southern California's Information Sciences Institute (ISI), whose team worked closely with SRI. To request a hostname and an address and add a computer to the master file, users contacted the SRI's Network Information Center (NIC), directed by Elizabeth Feinler, by telephone during business hours.