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LDAP Implementation Cookbook by Permana Widhiasta, Harri Stranden, Michel Melot, Heinz Johner

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1.3. LDAP: Protocol or Directory?

LDAP defines a communication protocol. That is, it defines the transport and format of messages used by a client to access data in an X.500-like directory. LDAP does not define the directory service itself. Yet, people often talk about LDAP directories. Others say LDAP is only a protocol and that there is no such thing as an LDAP directory. What is an LDAP directory? Let us first consider some basic information about X.500.

1.3.1. X.500: The Directory Service Standard

The CCITT (Comite Consultatif International Telephonique et Telegraphique or Consultative Committee on International Telephony and Telegraphy, which is nowadays ITU-T, International Telecommunications Union - Telecommunication Standardization ...

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