该文在对防火墙和入侵检测技术原理进行探讨的基础上,重点分析了防火墙与入侵检测系统联动的内在原因、功能特点和实现方式。分析结果表明,二者联动所构筑的网络安全体系既提升了防火墙的机动性和实时反应能力,又增强了入侵检测系统的阻断功能,从而全面提高网络系统的整体安全防护能力。 Based on the discussion of the principle of firewall and intrusion detection technology, this paper focuses on the analysis of the internal reason, the function and the realization of the linkage between firewall and intrusion detection system. The analysis results show that the network security system constructed by the linkage between the two enhances the mobility and real-time response capability of the firewall and enhances the blocking function of the intrusion detection system, thereby improving the overall security protection capability of the network system.