HIDS入侵检测系统 OSSEC源代码，跨平台，支持防火墙联动，文件完整性检测，rootkit检测-OSSEC is a scalable, multi-platform, open source Host-based Intrusion Detection System (HIDS). It has a powerful correlation and analysis engine, integrating log analysis, file integrity checking, Win

有关linux防火墙原理的介绍、通俗系统的介绍了饿防火墙有关的配置，和实现。-Introducing the theory of the linux firewall, popular system introduced the hungry firewall configuration, and implementation.