【摘要】 首先介绍了入侵检测系统的发展过程，随后讨论了通过对包过滤型防火墙的日志信息进行分析，建立一个基于防火墙日志信息的准实时的网络入侵检测系统。更多还原

【Abstract】 At first, this paper introduces the development process of intrusion detection system. Then by analyzing the log information of packet-filtering firewall, we construct a closing-real-time network intrusion detection system based on firewall log information.更多还原