在如今,防火墙技术已经成为了互联网最重要的安全技术之一。防火墙技术的使用,是抵抗黑客的入侵和防止未经授权而非法访问某些信息节点最有效手段之一。文章深度剖析了防火墙技术所具备的强大功能和特性,并重点讨论了校园网安全的相关内容,指出了在校园网络环境下应如何利用防火墙技术提高校园网络的安全性。 Today, firewall technology has become one of the most important security technologies on the Internet. The use of firewall technology is one of the most effective means of countering hacking and preventing unauthorized access to certain information nodes. The paper analyzes the powerful functions and features of firewall technology in depth, and discusses the related content of campus network security. It also points out how to use firewall technology to improve campus network security in campus network environment.