Snort入侵检测系统的规则库的分析和研究.docVIP

Snort入侵检测系统的规则库的 分析和研究 院 系： 专 业 班： 姓 名： 学 号： 指导教师： 2013年5月 Snort入侵检测系统的规则库的 分析和研究 Analysis and Research in Rule Base of Snort Intrusion Detection System 摘 要 入侵检测作为一种积极主动的安全防护技术，提供了对内部攻击、外部攻击和误操作的实时保护，对入侵攻击的检测与防范已成为刻不容缓的重要课题。Snort系统是一个典型的网络入侵检测系统，其设计原理和功能实现的研究Snort系统的研究具有较强的学术意义和较高的商业价值。 本文以Snort系统为研究对象，阐述系统的基本架构，剖析其规则，并探讨了Snort规则的具体应用。首先，本文介绍了入侵检测技术的基本知识，接着描述了Snort系统功能、特点及各模块的工作流程，随后重点对Snort的规则进行了，Snort的一些典型规则实例，并就一个实例规则 关键词Snort规则 规则实例 Abstract Along with the fast development of the network technology and the universal application of the network environmental, the safe problem in network is increasingly outstanding．The traditional encryption techniques and the Fire wall technique cannot meet the expectations fully．And as a safe means, Intrusion Detection techniques has displayed its import role．Intrusion Detection,as a positive security and defense technology,provides real-time security aiming at inner attack,outer attack and error operation.It becomes an important subject for intrusion attack and defense.The Snort is a typical Net Intrusion Detection System and some of design principle and characteristics of which is the base of most popular mercantile Intrusion Detection System .There are strong academically and commercial value to the research of Snort. In this text，writer regards Snort as the research object, analyzing its rules, expounding the basic structure of the Snort system, and studying the technique in application of Snort．First of all, this article describes the basics of the technology of intrusion detection, the Snort system functions, features and workflow for each module, then the focus to the Snort rules set forth, and finally analysis of some typical snort rule instances, analysis and improvement of a rule instance did. Key words: Intrusion Detection System Snort rules Rule instance 目 录 Abstract II 绪论 1 1 入侵检测系统 2 1.1 IDS的标准与结构 2 1.2 入侵检测系统分类 3 2 Snort系统概述 5 2.1 Snort的功能 5 2.2 Snort特点 5 2.3 Snort系统结构 6 2.4 Snort