随着网络的发展,网络给人们的学习和生活带来了极大的便利,但随之而来的网络安全问题也越来越引起人们的重视。校园网的安全是一个系统工程,防范不仅是被动的,更要是主动进行。该文基于ACL为主,建立ACL控制列表保障学生机房的安全运行,使校园网运作在一个安全稳定的环境下。 With the development of the Internet, the Internet has brought great convenience to people’s learning and living. However, the ensuing problems of network security have drawn more and more attention. Campus network security is a systematic project, prevention is not only passive, but also take the initiative. This article is based on ACLs and establishes an ACL control list to ensure the safe operation of student computer labs and make the campus network operate in a safe and stable environment.