White Papers

Firewall Analysis With Policy-Based Host Classification

Overview For administrators of large systems, testing and debugging a firewall policy is a difficult process. The size and complexity of many firewall policies make manual inspection of the rule set tedious and error-prone. The complex interaction of conflicting rules can conceal serious errors that compromise the security of the network or interrupt the delivery of important services. Most existing tools for verifying the policy require the user to provide a detailed set of test cases or queries, which can sometimes be as difficult as verifying the policy by hand. Deriving a sufficiently comprehensive set of tests requires a detailed knowledge of potential vulnerabilities and a familiarity with the mechanics of the firewall.

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Publisher: College of William and Mary
File Format: PDF
Date Published: May 31, 2008
Format: White Papers
Topics: Firewalls, Network Security, Security Tools

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