Date Added: Jan 2012
Network security is a large and growing area of concern for every network. Most of the network environments keep on facing an ever increasing number of security threats in the form of Trojan worm attacks and viruses that can damage the computer system and communication channels. Firewalls are used as a security check point in a network environment but still different types of security issues keep on arising. In order to further strengthen the network from illegal access the concept of Intrusion Detection System (IDS) and Intrusion Prevention System (IPS) is gaining popularity.