Briefly, an Intrusion Detection System monitors incoming packets and tries to detect both intelligent attacks and DenialOfService issues.

See: rather large list of intrusion detection systems, and an intrusion detection system 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



IntrusionDetectionSystem (last edited 2012-04-18 20:43:12 by DanRasmussen)