摘要： 入侵检测系统对已经发生的入侵进行检测并执行相应的对策。安全管理员在选择IDS时会有多种考虑，文章比较了入侵检测系统使用的不同方法，其结果可以协助特定系统选择最合适的单独的或协作的入侵检测系统。

关键词: 入侵检测系统, 安全, 异常检测, 误用检测

Abstract: Intrusion detection systems are implemented to detect an intrusion as it occurs, and to execute countermeasures when detecting. In this paper, different approaches to intrusion detection systems are compared, to supply a norm for the best-fit system. The results can assist in the selection of a single appropriate intrusion detection system or combine approaches that best fit any unique computer system.

中图分类号: 

• TP393.08