Stands for "Lightweight Directory Access Protocol." If you want to make directory information available over the Internet, this is the way to do it. LDAP is a streamlined version of an earlier directory standard called X.500. What makes LDAP so useful is that it works great over TCP/IP networks (unlike X.500), so information can be accessed through LDAP by anyone with an Internet connection. It is also an open protocol, which means directories can be stored on any type of machine (i.e. Windows 2000, Red Hat Linux, Mac OS X).
To give you an idea of how an LDAP directory is organized, here are the different levels of a simple LDAP tree hierarchy:
1. The root directory
4. Divisions, Departments
6. Individual resources, such as files and printers
Most LDAP connectivity is done behind the scenes, so the typical user probably won't notice it when surfing the Web. However, it is a good technology to know about.
Tech Terms Dictionary March 2014. Per Christensson. http://www.techterms.com
LDAP Contextless Login
The LDAP Contextless Login feature introduced with the Novell Client for Windows NT/2000/XP version 4.9 makes it easier for users to log in to the network because they no longer have to remember their context or tree name (depending on how you set it up). With LDAP Contextless Login, users simply enter their username and password in the Novell Login window - the Novell Client and LDAP Services for Novell eDirectory do the work of figuring out where the users are located and in which eDirectory tree. Administrators are free to move User objects around or change the organization's name, and the users will still be able to log in without any extra assistance. This saves you the costs associated with supporting users who have trouble remembering their tree/context information or who don't know how to change this information at login after modifications have been made in the tree structure.
Several large Novell customers have used LDAP Contextless Login to facilitate the merging of several trees into one global tree. Because users no longer needed to enter their tree or context in order to successfully authenticate after the merge, these customers could make changes within the directory as often as necessary without incurring the costs associated with supporting user login problems.
Novell Inc.Sep 2003. Nancy Cadjan Technical Writer. http://support.novell.com/techcenter/articles/ana20030901.html