Comparative Analysis of IDS Approaches and their Techniques

With increase in the reliability of today's generation on the computer systems and internet networks, it is important to maintain a secured network around us so as to retain security of data as well as the systems. During recent years, number ofattacks on networks has dramatically increased and consequently interest in network intrusion detection has increased among the researchers. This research paper will provide an overview of the “Intrusion Detection System” as a whole. This paper will focus on the intrusion detection techniques, its approaches, the securities against the intrusions and the challenges to the techniques used against intrusion.