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References
Fraser, B.
"Site Security Handbook RFC 2196." http://www.ietf.org/rfc/rfc2196.txt; September 1997.Malik, S. Network Security Principles and Practices. Indianapolis, Indiana: Cisco Press; 2003.Pfleeger, C. Security in Computing, 2d ed. Englewood Cliffs, New Jersey: Prentice Hall; 1996.The SANS Institute.
"The SANS Security Policy Project."
