Intrusion Detection System
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... Firewalls [CBR03], packet filters, intrusion detection systems, and
the like often have difficulty distinguishing between packets that
have malicious intent and those that are merely unusual. The problem
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... hosts scan other hosts in a fashion that can alert intrusion
detection systems. If the scanning is part of a benign research
project, the evil bit MUST NOT be set. If the scanning per se is
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... innocent, but the ultimate intent is evil and the destination site
has such an intrusion detection system, the evil bit SHOULD be set.
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... MIB variable.
Intrusion detection systems (IDSs) have a harder problem. Because of
their known propensity for false negatives and false positives, IDSs ...