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Research on Increasing Speed of Rule-matching in Snort

Han Yong-fei

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Abstract

This article analyzes the rule matching algorithm and working-mode of Snort,an open source-code NIDS.Firstly,this paper adds the width-first searching algorithm based on depth-first searching algorithm;secondly,this paper presents an idea of a C/S mode Snort,this idea increases server support for traditional Snort,to share the workload of client Snort.Thus,we can improve the work efficiency of Snort in two ways.

About this research paper

What this paper is about

This article analyzes the rule matching algorithm and working-mode of Snort,an open source-code NIDS.Firstly,this paper adds the width-first searching algorithm based on depth-first searching algorithm;secondly,this paper presents an idea of a C/S mode Snort,this idea increases server support for traditional Snort,to share the workload of client Snort.Thus,we can improve the work efficiency of Snort in two ways.

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Method / approach

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Available abstract

This article analyzes the rule matching algorithm and working-mode of Snort,an open source-code NIDS.Firstly,this paper adds the width-first searching algorithm based on depth-first searching algorithm;secondly,this paper presents an idea of a C/S mode Snort,this idea increases server support for traditional Snort,to share the workload of client Snort.Thus,we can improve the work efficiency of Snort in two ways.

Key concepts: Computer science, Workload, Matching (statistics), Open source, Mode (computer interface), Pattern matching, Code (set theory), Source code

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