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OCR: iere share conrechon The Best of Both Worlds. Intrusion Detection Systems (IDSs) are usually classified as either network- or host-based. Atlanta-based Internet Security Systems' RealSecure is a hybrid IDS that has characteristics of both network- and host-based IDSs. It consists of three main components: agents, engines, and the management console. Agents sit on host devices, such as servers and switches, to monitor usage. Engines sit on network segments and analyze network traffic for sus- picious activity, Both are administered via the management console, where information Is reported by the agents and engines.