Domain Name
System (DNS), in computer
communications, a method of translating Internet addresses so that computers
connected in the Internet can find each other. A DNS server translates a
numerical address assigned to a computer (such as 207.46.228.91) into a
sequence of words, and vice versa. A DNS name, written in lowercase letters
with words separated by periods, takes the form of username@computer.zonename
(for example: president@whitehouse.gov). Username is the name or account number
used to log on. The hostname (Whitehouse in the example above) is the name of
the computer or Internet provider; it may consist of several parts. Zonename
indicates the type of organization. Common zone names include com (commercial
organization), edu (educational), gov (government), and net (networking
organization).
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