International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
Intrusion detection is an essential and important technique in research field. One of the main challenges in the security management of large-scale high-speed networks is the detection of suspicious anomalies in network traffic patterns due to different kinds of network attack. The authors give attacks normally identified by intrusion detection systems. Differentiation can be done in existing intrusion detection methods and systems based on the underlying computational methods used. Intrusion detection methods started appearing in the last few years.