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Cisco Networking Simplified, Second Edition
book

Cisco Networking Simplified, Second Edition

by Jim Doherty, Neil Anderson, Paul Della Maggiora
December 2007
Intermediate to advanced
432 pages
9h 36m
English
Cisco Press
Content preview from Cisco Networking Simplified, Second Edition

Chapter . Intrusion Prevention Systems

Intrusion Detection Systems

Firewalls provide a barrier for traffic. However, some traffic may look legitimate and may in fact be legitimate, but it might be carrying devious viruses or attack programs.

Although a firewall is sufficient for home use, corporations tend to have more at risk and choose to invest in extra measures to detect traffic patterns that a firewall can’t catch. Intrusion detection provides this ability.

IDSs analyze data in real time to detect, log, and hinder misuse and attacks. Host-based IDSs monitor server operations for any mischievous events. Network-based IDSs monitor network traffic on a specific portion of the network.

Network-based IDSs monitor traffic in real time, looking at a ...

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Publisher Resources

ISBN: 9781587056017Purchase book