Module D Panko and Panko Business Data Networks and Security, 9 th Edition © 2013 Pearson Education, Inc. Publishing as Prentice Hall

 Companies are increasingly storing their information centrally in directory services. ◦ People  Location  Access permissions, etc. ◦ Network resources ◦ Computers © 2013 Pearson Education, Inc. Publishing as Prentice Hall 2 Directory Server

© 2013 Pearson Education, Inc. Publishing as Prentice Hall 3 Organized hierarchically, not relationally

© 2013 Pearson Education, Inc. Publishing as Prentice Hall 4 Interactions usually take place using the Lightweight Directory Access Protocol (LDAP).

 Microsoft’s directory server product.  Organization typically has multiple AD servers.  The organization is divided into domains.  Domains usually reflect corporate subunit boundaries.  Domains are organized hierarchically in a tree. 5 © 2013 Pearson Education, Inc. Publishing as Prentice Hall

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7 For domain controllers in a domain, there is complete replication of the AD database. Across domain levels, there is partial AD replication.

© 2013 Pearson Education, Inc. Publishing as Prentice Hall 8

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