LDAP (Lightweight Directory Access Protocol)

The Lightweight Directory Access Protocol builds on TCP/IP to define a query-response protocol for querying the state of remote databases.

A protocol used to access information directories. LDAP is designed to provide a common method for fast hierarchical searching e-mail addresses on the Internet. LDAP makes it possible for almost any application that is running on nearly any computer platform to obtain directory information, such as e-mail addresses, login names and passwords.

Enables LDAP clients to access directory information from an Exchange directory. [Exchange 5.5]

An open protocol that uses TCP/IP to provide access to directories that support an X.500 model and that does not incur the resource requirements of the more complex X.500 Directory Access Protocol.