Briefly, an Intrusion Detection System monitors incoming packets and tries to detect both intelligent attacks and DenialOfService issues. [http://www-rnks.informatik.tu-cottbus.de/~sobirey/ids.html Here] is a rather large list of existing intrusion detection systems, and [http://www.robertgraham.com/pubs/network-intrusion-detection.html here] is a FAQ. A similar idea, ExtrusionDetection monitors outgoing packets to make sure "bad traffic" does not escape, thus preventing the operator's exposure to various men with clubs and bad attitudes. --AndrewWoods
Revision 5 as of 2002-03-02 16:22:24
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