Introduction to Directories and LDAP

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• Different types of data are held in attributes of different types.
  
  
• Each attribute type has a particular syntax.
  
  
• The LDAP standard describes a rich set of standard attribute types and syntaxes (based on X.500's set).
  
  
• Plus, you may define your own attributes, syntaxes, and even object classes -- you can tailor your directory to your own site's specific needs.