Intrusion Detection Systems Definition: Intruder Detection Systems (IDS) monitors the traffic on the network. It monitors packets on the network wire and attempts to discover if a hacker/cracker is attempting to break into a system or cause a denial of service attack. An IDS may run either on the target machine, which watches its own traffic, or on an independent machine watching all the network traffic (hub, router and probe). An IDS is placed in each segment to monitor packet flow to and from the servers. Network-based intrusion detection and real-time response system, provides total threat protection and prevention from the network's perimeter and throughout internal systems. Proposed Solutions: Internet Security Systems TopLayer RealSecure NetProwler Snort Extol proposes a service of 24x7 monitoring and surveillance for Intrusion Detection Systems, iPatrol nIDS, in order to remotely protect your network perimeter. Some IDS are software based, and we then recommend the following secured platforms as hardware: Nokia Sun Microsystems

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