Richard Bejtlich is director of incident response at General Electric Company in Manassas, Va. and blogs at Bejtlich.net and TaoSecurity.com. Listen to the rest of Richard's answers on Snort by downloading our Snort podcast.
Bro is the only other real open source network intrusion detection system supported by a significant community of users. Vern Paxson of the University of California at Berkeley is the lead developer. Bro is considered a specification-based network IDS. Bro uses a variety of protocol analysis modules to inspect traffic and make judgments regarding its conformance to various norms. It is actually a very powerful complement to Snort.
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