CSE3502 Study Guide - Final Guide: Intrusion Detection System, Denial-Of-Service Attack, Race Condition

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Intrusion prevention system (ips): an ips is a network security tool that can not only detect intruders, but also prevent them from successfully launching any known attack. Network intrusion prevention devices, on the other hand, are typically inline devices on the network that inspect packets and make decisions before forwarding them on to the destination. An active response device dynamically reconfigures or alters network or system access controls, session streams or individual packets based on triggers from packet inspection and other detection devices. Most important, an ips must perform packet inspection and analysis at wire speed. Intrusion prevention systems should be performing detailed packet. Active response happens after the event has occurred; thus, a single packet attack will be successful on the first attempt but will be inspection to detect intrusions, including application- layer and zero- day attacks. System or host intrusion prevention devices are also inline at the operating system level.

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