The domain name system
(DNS) is the way that Internet domain names are located and translated into Internet Protocol addresses. A domain name is a
meaningful and easy-to-remember "handle" for an Internet address.
Because maintaining a central list of domain
name/IP address correspondences would be impractical, the lists of domain names
and IP addresses are distributed throughout the Internet in a hierarchy of
authority. There is probably a DNS server within close geographic proximity to
your access provider that maps the domain names in your
Internet requests or forwards them to other servers in the Internet.
Examples are:
.com, .edu, .gov, .org, .net, and many more.
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