Active Network Security
Theuns Verwoerd
Department of Computer Science
University of Canterbury
Abstract
Most discussions of network security focus on the tools and techniques used to fortify networks: firewalls, biometrics, access controls, encryption. This paper presents an outline of tools that assist an administrator in verifying and maintaining the security of a networked system Active Security tools. It discusses why there is a need for such tools and how security mechanisms are attacked. The report also describes the main tools available in this field, with particular emphasis on Intrusion Detection tools how they work, what is available, and how they are changing. Finally, it demonstrates some of the concepts in a practical firewall network simulation.