International Journal of Computer Applications
With the growing advances in the technology the uses of computer systems and the Internet is also growing at a rapid rate, and with the increase in their usage vulnerabilities and threats are also increasing tremendously. A large number of approaches have been proposed till now for improving the security of a host system and a network. One of the proposed approaches is an Intrusion Detection System (IDS). An IDS works for a system is referred as Host IDS and the one that works for a network is referred as Network IDS. But their functionality is specific to particular host and a network; one does not work as an alternative to another.