Briefly, an Intrusion Detection System monitors incoming packets and tries to detect both intelligent attacks and DenialOfService issues. Here is a rather large list of existing intrusion detection systems, and 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 8 as of 2007-11-23 18:03:23
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