Institute of Research and Journals (IRAJ)
As the world becomes more connected to the cyber world, attackers and hackers are becoming increasingly sophisticated to penetrate computer systems and networks. Intrusion Detection System (IDS) plays a vital role in defending a network against intrusion. Many commercial IDSs are available in marketplace but with high cost. At the same time open source IDSs are also available with continuous support and up-gradation from large user community. Each of these IDSs adopts a different approaches thus may target different applications.