Chapter 3

Ldap Models

Chapter 1 provided a rough overview of LDAP. This chapter provides some theoretical background that will give you an impression of the concepts underlying LDAP. Most of these concepts are covered in the requests for comments (RFCs). The standardization of LDAP is still a work in progress, so please refer to RFCs on the IETF Web site ( if you want stay up to date. Recall from Chapter 1 that LDAP is the lightweight counterpart of the original X.500 Directory Access Protocol. Consequently, most of the concepts in LDAP are inherited from X.500. As a lightweight protocol, LDAP lacks several seldom-used features included in the X.500 protocol. However, some of these features are now being added to the protocol. As ...

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