随着科学技术的不断进步,计算机网络在现代社会中的应用越来越广泛,内部网络安全问题日益显著,防火墙已经成为解决计算机内部网络安全问题的主要方式,对于提升内部网络的安全性有很大的帮助。文章将针对内部网络的安全技术和安全管理进行分析,明确基于防火墙的内网安全防护策略。 With the continuous progress of science and technology, the application of computer network in modern society is more and more extensive, and the problem of internal network security is becoming more and more obvious. Firewall has become the main way to solve the problem of network security in the computer. It is very important to improve the security of internal network Big help. The article will analyze the security technology and security management of the internal network, and clarify the internal network security protection strategy based on the firewall.