网络入侵检测关键技术研究

摘要：随着计算机的日益普及和互联网的飞速发展，网络安全问题已变得十分严峻。为解决这个问题，近年来入侵检测的思想被提了出来，并逐渐成为研究热点。据统计，几乎每20秒全球就有一起黑客事件发生，仅美国每年所造成的经济损失就超过100亿美元。为此，我们不但需要采用防火墙等网络安全工具在网络边界保护内部网络安全，更需要研究可靠性高的入侵检测工具来提高网络的安全级别，构造具有中国特色的安全防护体系。本文主要是针对获取访问者IP与捕获数据包，来检测是否访问合法，如果发现非法入侵，将阻止本次访问并记录其相关信息。本文使用java语言和C语言分别实现其检测模块。

关键字: 入侵检测；网络安全；IP

Abstract：With the increasing popularity of computers and the rapid development of Internet, network security has become very serious. To address this problem, in recent years, intrusion detection idea had been raised, and gradually become a research hotspot. According to statistics, almost every 20 seconds there is a hacker attack occurs worldwide, only the U.S. economic losses each year more than 10 billion dollars. To this end, we not only need the use of firewalls and other network security tools to protect the internal network in the network perimeter security, but also need to study the reliability of the network intrusion detection tools to improve the security level of construction with Chinese characteristics, safety protection system. This article is for access to visitors and capture IP packets, to detect whether a legitimate, if illegal invasion, will stop the visit and record their information. This article uses the java language and C language were to achieve its detection module.

Keyword：Intrusion Detection;Network Security;IP

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