入侵检测技术是保证计算机网络安全的核心技术之一,在保护计算机安全方面起着越来越重要的作用。本文首先论述了入侵检测技术的发展历史,介绍了相关基本概念及分类;然后按照分类,重点介绍了部分典型模型,方法及其特点等;最后,讨论了该领域尚存在的问题及今后的发展趋势。 Intrusion detection technology is one of the core technologies to ensure computer network security and plays more and more important role in protecting computer security. This paper first discusses the history of the development of intrusion detection technology, introduces the basic concepts and classification; and then according to the classification, introduces some typical models, methods and their characteristics; Finally, the existing problems in the field and the future development trend.