1. (DUE October 11, 2005 by midnight EDT) Briefly discuss what you learned from the readings in chapters 14:
   • What was the most surprising thing you learned?
   • What was the most difficult part for you?
2. (DUE October 11, 2005 by midnight EDT) Select one of the following questions to discuss in detail through the threaded discussion.
   • Novell Access Control Lists describes ACL as implemented by the Novell operating system. Compare this implementation with the ACL implementation by your favorite OS (Windows, Linux, MAC)
   • Explain why some UNIX-based systems with access control lists do not allow root to alter the ACL. What problems might this raise?
   • Although most systems allow objects to have only one owner, it is possible for an object to have two (or more) owners. Consider ownership as a right that allows the changing of capabilities (or access control lists). How might you implement this right using capabilities? access control lists?
3. (DUE Oct. 16, 2005 by midnight EDT) Select a discussion from one or more of your classmates and respond to their comments.

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