Firewall Rulebase Management: Tools and Techniques

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Author(s): Michael J. Chapple (University of Notre Dame, USA), Aaron Striegel (University of Notre Dame, USA)and Charles R. Crowell (University of Notre Dame, USA)
Copyright: 2011
Pages: 23
Source title: ICT Ethics and Security in the 21st Century: New Developments and Applications
Source Author(s)/Editor(s): Marian Quigley (Monash University, Australia)
DOI: 10.4018/978-1-60960-573-5.ch013

Keywords: Information Science Reference / Information Security & Privacy / IT Security and Ethics / Security & Forensics

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Abstract

The network firewall serves as one of the foundational network components for modern day computer security. A key challenge with respect to firewalls is the on-going maintenance of the rules of the various firewall devices, namely how does one keep the firewall at maximum security effectiveness in the face of changing security threats and enterprise application needs? To that end, this chapter focuses on contributions in two key areas with respect to the practice of firewall rulebase management. First, the chapter presents a general model for the auditing and analysis of installed firewalls that ensures compliance with security policy requirements and technical specifications. Second, the chapter provides insight for the proactive identification of rules that possess a high likelihood of becoming orphaned in the future based upon their similarity to previously orphaned firewall rules.

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