摘要： 入侵检测系统(IDS)是保护信息系统安全的重要方式。而新一代IDS的一个最主要的特点就是IDS入侵检测规则描述语言。该文通过对Snort规则的分析与比较，提出了一种基于网络的IDS规则描述语言，它具有直观易定义、描述精确等特点。

关键词: 入侵检测系统, 信息系统安全, 规则, Snort

Abstract: While more and more frequent intrusions bring severe security threats to the network-based computer information system(CIS), the intrusion detection system(IDS) which is an important kind of security protection tools has become a hotspot for research. The paper analyses the Snort rules,and claims a kind of rule description of IDS.

中图分类号: 

• TP393.08