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126.96.36.199 Active Detection
NIDS are increasingly focusing on
active detection. This does not refer to how the NIDS detects potential
problems, as you might expect. Instead it refers to how the NIDS responds
to the situation once it is detected. (Sorry folks, this is the industry
standard terminology. We didnt create it.) With active detection,
the NIDS takes some action to mitigate the detected threat. Such
options can include:
- Reconfigure a firewall or router to route traffic
around a problem such as a DoS attack
- Break suspicious network connections
- Send a message to a host-based agent to shut
down a vulnerable service on a particular host
- Attempt to collect more information about the
With Active Detection, a NIDS actively attempts to perform damage control on a detected intrusion attempt.
Actions taken as part of active detection can include reconfiguring a router to route around a network problem like a DoS attack, breaking suspicious network connections, shutting down services to minimize vulnerability, or collecting more information about the intrusion.
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CertiGuide for Security+ (http://www.CertiGuide.com/secplus/) on CertiGuide.com
Version 1.0 - Version Date: November 15, 2004
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