The X.500 is a directory access protocol defined by ITU-T and ISO, providing an electronic directory of organizational members that enable anyone within the world access to Internet access to this directory.
In the X.500 directory structure, through the directory access protocol DAP, the client query and receive responses from one or more servers in the server directory service, thereby implementing communication control between servers and clients.
A directory system agent DSA refers to a database for storing directory information. The database uses a hierarchical format with a fast and efficient search function. DSAS is connected to the directory information tree DIT. Directory User Agent DUA is a user interface program for accessing one or more DSAS. DUAS includes WHOIS, finder finger, and providing a related program that is a graphical user interface.
The directory system protocol DSP mainly controls two or more directory system agencies, directory user agent and directory system agents inter-interactive operations. The specific implementation process is that the end user can access the information in the directory without knowing the exact location of a particular information. For more information, please visit the following page: 中文 版: http://www.networkDictionary.com/chinese/protocols/x500.php English version: http://www.networkDictionary.com/protocols/x500.php
