Basic HTML version of Foils prepared July 6 99

Foil 18 LDAP (4)

From Directory Services for the Internet CPS714 Computational Science Information Track -- June 7 99. by Roman Markowski


LDAP was developed to provide clients with a lightweight method of accessing X.500 databases eliminating DAP (OSI Directory Access Protocol). DAP creates so much overhead that is not practical.
LDAP will help navigate but will not replace X.500
LDAP can be used to communicate with any attribute based directory, including X.500
It evolved as a standalone protocol: LDAP is a client-server product
  • LDAP client -> LDAP server <-> database
  • TCP 389 port is used
  • TCP 636 is used for encrypted LDAP



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