Date Added: Jan 2010
The idea of this paper is to present different kinds of Intrusion Detection Systems and at the same time their advantages and disadvantages. But first, some words about the meaning and intention of Intrusion Detection Systems. An IDS sort of observes activities on the particular host or network with several methods. Host-Based Intrusion Detection Systems analyze information on a single host. As they normally do not look at the whole network traffic but "Only" at the activities on the same host they are able to make more precise statements about the kind of attack.