Domain Name System

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domain name system

[dō‚mān ′nām ‚sis·təm]
(computer science)
Abbreviated DNS.
A system used on the Internet to map the easily remembered names of host computers (domain names) to their respective Internet Protocol (IP) numbers.
A software database program that converts domain names to Internet Protocol addresses, and vice versa.

Domain Name System

(networking)
(DNS) A general-purpose distributed, replicated, data query service chiefly used on Internet for translating hostnames into Internet addresses. Also, the style of hostname used on the Internet, though such a name is properly called a fully qualified domain name. DNS can be configured to use a sequence of name servers, 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 configured to search for host information in the following order: first in the local hosts file, second in NIS and third in DNS. This sequencing of Naming Services is sometimes called "name service switching". Under Solaris is configured in the file /etc/nsswitch.conf.

DNS can be queried interactively using the command nslookup. It is defined in STD 13, RFC 1034, RFC 1035, RFC 1591.

BIND is a common DNS server.

Info from Virtual Office, Inc..
References in periodicals archive ?
However, it will use a fake DNS system that will connect the name of the site to a verified and unique public key.
According to The Washington Post, the virus, as its name indicates, affected computers' abilities to correctly access the Internet's DNS system, essentially, the Internet's phone book.
Here's a Private Global Network in conjunction with the current DNS system offering unlimited possibilities for all those wanting personalization and easy-to-remember options.
Further more, the VSP supports DNS Security Extensions (DNSSEC) a system designed to protect the Internet from attacks on the DNS system, the backbone of the entire Internet.
Consider an example in which three banks, called Banks A, B, and C, are the members of a DNS system.
It took an international team of internet experts from Icann and around the world to create the alternative addresses which have now been dropped into the DNS system in order to be recognized around the world by Arab users.
Research over the last three years by WatchGuard's Rapid Response team has tracked attack patterns and identified five key threats: DNS system attacks, virus and malware, buggy web applications, hacking for profit, and the end users themselves.
This process uses the DNS system in reverse, querying it with the IP address and having it return the system Domain Name.
Icann was given the authority to regulate the DNS system under a contract from the US Department for Commerce, but that contract expires in 2006, and the US is under pressure to grant others a say.
As the combined system is only for demonstration purposes, the companies have not given out a price and presumably users that wished to implement a DNS system could choose the packages they want to use on top of a Microsoft backbone.
Consistent with that goal, the IDI system converts all foreign characters into English before interacting with the DNS, and therefore causes no modification or disruption to the DNS system whatsoever.
Since the DNS system is responsible for initiating virtually every Internet transaction, it plays a vital role in the overall operation of the Internet.