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随着计算机网络技术的不断发展,众多企事业单位、政府部门将其核心业务向互联网转移,网络安全作为一个无法回避的问题呈现在人们面前。网络用户一般采用防火墙作为安全的第一道防线。信息的获取、使用和控制的竞争愈演愈烈,网络安全问题变得日益重要,信息安全成为维护国家安全和社会稳定的一个焦点。如何辨别防御与攻击和增强网络安全已成为技术管理人员研究的问题。入侵检测已成为网络安全领域的热点课题。异常检测和误用检测是入侵检测的主要分析方法。
With the continuous development of computer network technology, many enterprises and public institutions and government departments shift their core businesses to the Internet, and network security is presented as an unavoidable problem to people. Internet users generally use the firewall as the first line of defense. The competition for access, use and control of information has become increasingly fierce. The issue of cybersecurity has become increasingly important. Information security has become a focus of safeguarding national security and social stability. How to identify defense and attack and enhance network security has become a problem for technical managers. Intrusion detection has become a hot topic in the field of network security. Anomaly detection and misuse detection are the main methods of intrusion detection.