Domain Name System

Domain Name System (DNS) is a general-purpose distributed, replicated, data query service chiefly used on the Internet for translating hostnames into Internet addresses. The style of hostname used on the Internet is properly called a . DNS is defined in STD 13, RFC 1034, RFC 1035, RFC 1591.. 2001-05-14.
==Usage==
DNS queries can be configured to use a sequence of s, based on the domains in the name being looked for, until a match is found. The name resolution client (e.g. Unix's gethostbyname() library function) can be set to search for host information in the following order: first in the local , second in NIS and third in DNS. This sequencing of Naming Services is sometimes called "name service switching". Under , it is configured in the file /etc/nsswitch.conf. DNS can be queried interactively using the command .
==References==
==External links==
*Enter DNS and search domain settings on Mac at Apple Support
**Specify a DNS server on Mac
* at Wikipedia
Category:Internet