网络检测系统根据收集、分析网络行为、安全日志、审计数据等获取信息,检测系统或网络是否存在违反安全策略的行为。文中简述遗传算法和网络安全检测系统后,提出基于粗粒度模型遗传算法网络检测系统,为满足系统要求设计适应度函数,确保遗传基因取舍和利用更为科学、合理。该系统主要由数据包采集模块、检测模块、响应模块等部分组成,充分发挥遗传算法在网络安全检测系统中的应用效果。 Network detection system collects and analyzes network behavior, security logs, audit data and other information to detect whether there is any violation of security policies in the system or network. After the brief introduction of genetic algorithm and network security detection system, a network detection system based on coarse-grained model genetic algorithm is proposed. It is more scientific and reasonable to design a fitness function to meet the system requirements and ensure genetic selection and utilization. The system consists of data packet acquisition module, detection module, response module and other components, give full play to the application of genetic algorithm in the network security detection system.