主机网络安全是计算机安全领域新兴的边缘技术 ,它综合考虑网络访问的网络特性和操作系统资源特性 ,以实现对于网络访问的细粒度控制 .本文从分析主机安全和网络安全的着重点、常用手段和主要问题出发 ,试图对主机网络安全作一简单定义 ,并描述出主机网络安全系统的体系结构 .最后 ,对主机网络安全技术的难点及其解决方法做了简要分析 Host network security is an emerging edge technology in the field of computer security, which takes into account the network characteristics of network access and operating system resource characteristics in order to achieve fine-grained control of network access.This article analyzes the main points of the host security and network security, common methods And the main problems, trying to make a simple definition of host network security and describing the architecture of host network security system.Finally, the paper analyzes the difficulties and solutions of host network security technology briefly