随着网络与信息安全问题显得越来越突出,研究信息安全的防御技术很有必要。本文阐述了入侵检测的必要性,介绍了入侵检测的基本原理及其标准化,并对入侵检测系统的分类及检测方式进行了介绍,分析了入侵检测目前存在的问题,为进一步对入侵检测系统的研究打下理论基础。 With the network and information security issues become more and more prominent, the study of information security technology is necessary defense. This paper describes the necessity of intrusion detection, introduces the basic principles of intrusion detection and its standardization, and introduces the classification and detection methods of intrusion detection system, analyzes the existing problems in intrusion detection, in order to further the intrusion detection system Research laid the theoretical foundation.