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27

Lightweight Directory Access Protocol (LDAP)

The Lightweight Directory Access Protocol (LDAP) has been referred to as many things, including “the best thing since sliced bread.” However, it is actually a set of open protocols used to access, query, and modify centrally stored information over a network. LDAP is based on the X.500 standard (X.500 is an International Organization for Standardization [ISO] standard that defines an overall model for distributed directory services) but is a more lightweight version of the original standard. RFC 4511 explains the relationship like so: “LDAP provides access to distributed directory services that act in accordance with X.500 data and service models.”

LDAP was developed by the University ...

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