Difference between revisions of "Domain Name System"
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Revision as of 21:51, 13 December 2018
The Domain Name System (usually abbreviated to DNS) is a distributed database which is used on the Internet to hold mappings from human-readable names (such as '.COM') to binary addresses.
The DNS is organized as a hierarchy; like file names in a hierarchical file system, a complete DNS name consists of a number of parts, each one of which selects one of the possibile namespaces (sub-directories) at the next level down. The leaves of the tree usually name individual hosts.
Although the DNS has the capability to hold addresses for a number of different protocol suites, in general it now only hold addresses for the Internet Protocol.
