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Domain Name System (DNS)

For example, consider self-adaptation to station location... If Able moved... all he need do to announce his new location is to transmit a few seconds of dummy traffic. The network will quickly learn the new location and direct traffic toward Able at his new location.

- Paul Baran, On Distributed Communications, Volume I, 1964.

What is the DNS? The Domain Name System (DNS) as a whole consists of a network of servers that map Internet domain names like to a local IP addresses.

The DNS enables domain names to stay constant while the underlying network topology and IP addresses change. This provides stability at the application level while enabling network applications to find and communicate with each other using the Internet protocol no matter how the underlying physical network changes.

You can look up information on existing Internet domain names with the whois service, and get your own domain name from an accredited registrar. The following sections provide more information: