In computer networking, the Lightweight Directory Access Protocol, or LDAP ("ell-dap"), is a networking protocol for querying and modifying directory services running over TCP/IP. An LDAP directory usually follows the X.500 model: it is a tree of entries, each of which consists of a set of named attributes with values. While some services use a more complicated "forest" model, the vast majority use a simple starting point for their database organization.
An LDAP directory often reflects various political, geographic, and/or organizational boundaries, depending on the model chosen. LDAP deployments today tend to use Domain Name System (DNS) names for structuring the most simple levels of the hierarchy. Further into the directory might appear entries representing people, organizational units, printers, documents, groups of people or anything else which represents a given tree entry, or multiple entries.
Its current version is LDAPv3. LDAPv3 is specified in a series of IETF Standard Track RFCs as detailed in RFC 4510.
More on [ Lightweight Directory Access Protocol ]

AK BK Home - LDAP Schema Viewer - Information on this LDAP schema viewer and its current status, common questions, and object classes.
Brad Marshall's LDAP Documentation - Documentation and tutorials about LDAP, including what LDAP is, system authentication using LDAP, perl scripting and more.
Meta Description: [ Brad Marshall's publications page ]
DSML Tools - Java implementation of an LDAP to DSML bi-directional gateway. (DSML stands for Directory Services Markup Language - an XML dialect for directory data).
IBM Redbook: Understanding LDAP - Basic principles and concepts of LDAP. Minimum product-related or vendor-specific information.
Meta Description: [ The implementation and exploitation of centralized, corporate-wide directories are among the top priority projects in most organizations. ]
IBM Redbook: Using LDAP for Directory Integration - Explains directory and LDAP concepts and tasks. Contains examples based on IBM SecureWay, Lotus Domino and Microsoft Active Directory.
Meta Description: [ Directories are key for a successful IT operation and e-business application deployments in medium and large environments. ]
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LDAP Guru - A web portal for discussion and sharing of information about LDAP and Directory Services. Includes discussion forums and recent news.
Meta Description: [ A LDAP portal. The ONLY non vendor biased portal dedicated to serving information related and based on the Lightweight Directory Access Protocol. ]
Linux Directory Services - A project integrating LDAP and SSL to provide a secure network directory services architecture, replacing the Network Information Service (NIS).
OpenLDAP - Committee seeks to develop a robust suite of applications based on the Lightweight Directory Access Protocol for hierarchical data access.
Meta Description: [ The Open Source for LDAP software and information. Home of OpenLDAP. ]
wanderlist - LDAP Resources - List of links to LDAP resources, ranked by most votes received by site visitors.
Meta Description: [ w a n d e r l i s t - LDAP Resources - Resources listing for the Lightweight Directory Access Protocol.
If you find something else good out there, please remember to come back here and post it for the rest of us. ]
What is LDAP? - Brief overview of LDAP, with links to further resources.
Meta Description: [ A plain-English explanation of LDAP (Lightweight Directory Access Protocol), with links to more information. LDAP is the Internet standard for providing "white pages" (phone book-like) service to organizations, workgroups, or the public. ]
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