Intrusion Detection System

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Intrusion Detection System 2009 December 20 by Farquad In highly networked modern world, conventional techniques of network security su ch as user authentication, cryptography and intrusion prevention techniques like firewalls are not enough, owing to formulations of new attacks. Intrusion detec tion systems are becoming an important need for today s networks. Anomaly detectio n is used as a part of intrusion detection systems, which in turn use certain da ta mining techniques. Data mining techniques can be applied to the network data to detect possible intrusions. The foremost step in application of data mining t echniques is the selection of appropriate features from the data. An intrusion is someone attempting to break into or misuse the system. An intrus ion detection system (IDS) for short, attempts to detect an intruder breaking in to the system or a legitimate user misusing system resources. The IDS will run c onstantly on the system, working away in the background, and only notifying the user when it detects something it considers suspicious or illegal. Whether the u ser appreciates that notification depends on how well the users have configured the intrusion detection system. Note that there are types of potential intruders: Outside Intruders: Most people perceive the outside world to be the largest thre at to their security. The media scare over hacker coming in over the Internet has only heightened this perception. Inside Intruders: FBI studies have revealed that 80% of intrusions and attacks c ome from within organizations. http://www.inspirenignite.com/computer-science-seminar-topics/

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