Directory service - Revision history

Karl Jones at 21:24, 7 May 2016

2016-05-07T21:24:35Z

Karl Jones: /* External Links */

2016-04-21T14:06:29Z

‎External Links

Karl Jones: /* External Links */

2016-04-21T14:06:16Z

‎External Links

Karl Jones: /* Examples */

2015-09-02T14:45:28Z

‎Examples

Karl Jones at 14:44, 2 September 2015

2015-09-02T14:44:53Z

Karl Jones: cf

2015-08-29T20:57:11Z

Karl Jones: Def.

2015-05-10T18:36:44Z

Def.

New page

A '''directory service''' is a software system that stores, organizes, and provides access to information in a computer operating system's directory.

In software engineering, a directory is a map between names and values. It allows the lookup of named values, similar to a dictionary. As a word in a dictionary may have multiple definitions, a directory service can associate a name with multiple, different pieces of information. Likewise, as a word may have different parts of speech and different definitions, a name in a directory may have many different types of data.

Directories may be very narrow in scope, supporting only a small set of node types and data types, or they may be very broad, supporting an arbitrary or extensible set of types.

Examples:

* In a telephone directory, the nodes are names and the data items are telephone numbers.
* In the DNS the nodes are domain names and the data items are IP addresses (and alias, mail server names, etc.).
* In a directory used by a network operating system, the nodes represent resources that are managed by the OS, including users, computers, printers and other shared resources.

== External Links ==

* [https://en.wikipedia.org/wiki/Directory_service Directory service] @ Wikipedia

@@ Line 9: / Line 9: @@
 == Examples ==
-* In a telephone directory, the nodes are names and the data items are telephone numbers.
+* In a [[telephone directory]], the nodes are names and the data items are [[Telephone number|telephone numbers]].
 * In the [[Domain Name System]], the [[Node (computer science)|nodes]] are domain names and the data items are [[IP address|IP addresses]] (and alias, mail server names, etc.).
-* In a directory used by a network operating system, the nodes represent resources that are managed by the OS, including users, computers, printers and other shared resources.
+* In a directory used by a [[network operating system]], the nodes represent resources that are managed by the OS, including [[Users (computing)|users]], [[computers]], [[printers]], and other shared resources.
 == See also ==

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	[[Category:Computing]]		[[Category:Computing]]
	[[Category:Computer networks]]		[[Category:Computer networks]]
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← Older revision		Revision as of 14:06, 21 April 2016
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	* [https://en.wikipedia.org/wiki/Directory_service Directory service] @ Wikipedia		* [https://en.wikipedia.org/wiki/Directory_service Directory service] @ Wikipedia
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		+	[[Category:Computer science]]
		+	[[Category:Computing]]
		+	[[Category:Computer networks]]

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 * In a telephone directory, the nodes are names and the data items are telephone numbers.
-* In the [[Domain Name Server]] the nodes are domain names and the data items are [[IP address|IP addresses]] (and alias, mail server names, etc.).
+* In the [[Domain Name System]], the [[Node (computer science)|nodes]] are domain names and the data items are [[IP address|IP addresses]] (and alias, mail server names, etc.).
 * In a directory used by a network operating system, the nodes represent resources that are managed by the OS, including users, computers, printers and other shared resources.

@@ Line 1: / Line 1: @@
 A '''directory service''' is a [[software]] system that stores, organizes, and provides access to [[information]] in a [[computer]] [[Operating system|operating system]]'s [[directory]].
 In [[software engineering]], a ''directory'' is a [[map]] between [[names]] and [[values]]. It allows the lookup of named values, similar to a dictionary. As a word in a dictionary may have multiple definitions, a directory service can associate a name with multiple, different pieces of information. Likewise, as a word may have different parts of speech and different definitions, a name in a directory may have many different types of data.
@@ Line 5: / Line 7: @@
 Directories may be very narrow in scope, supporting only a small set of node types and [[Data type|data types]], or they may be very broad, supporting an arbitrary or extensible set of types.
-Examples:
+== Examples ==
 * In a telephone directory, the nodes are names and the data items are telephone numbers.
-* In the DNS the nodes are domain names and the data items are IP addresses (and alias, mail server names, etc.).
+* In the [[Domain Name Server]] the nodes are domain names and the data items are [[IP address|IP addresses]] (and alias, mail server names, etc.).
 * In a directory used by a network operating system, the nodes represent resources that are managed by the OS, including users, computers, printers and other shared resources.