随着网络技术的不断发展,网络环境也变得越来越复杂,对于网络安全来说,传统的安全防护系统已经不能满足当前的安全需求。因此,为了保护现在越来越多的安全信息,入侵检测技术得到了更为广泛的重视。入侵检测系统也已经成为目前系统安全研究中最为活跃、发展最快的领域之一。本文主要是介绍信息安全和入侵检测系统的基本概念,对现有的入侵检测技术进行分析和讨论。 With the continuous development of network technology, the network environment has become more and more complex. For the network security, the traditional security protection system can no longer meet the current security requirements. Therefore, in order to protect more and more security information nowadays, intrusion detection technology has received more and more attention. Intrusion detection systems have also become one of the most active and fastest-growing fields in system security research. This article mainly introduces the basic concepts of information security and intrusion detection system, analyzes and discusses the existing intrusion detection technology.