随着数字化,网络化,信息化时代的到来。计算机网络的飞速发展给人类社会带来了巨大推动作用的同时,也产生了网络安全问题。《网络安全》课程的开设使学生了解网络不安全的各种因素,了解网络系统所面临的安全任务,提高安全意识;掌握网络安全的基本概念、原理和知识体系结构;掌握和了解基本的计算机网络安全技术,掌握常见的网络攻击技术以及保证网络安全的各种方法和技术。本文介绍了计算机网络安全的含义,以影响网络安全的主要隐患为突破口,重点探讨了计算机网络的几种安全防护措施,以解决计算机网络安全问题。 With the digital, network, the arrival of the information age. The rapid development of computer network has brought great impetus to human society, and it has also brought cybersecurity issues. The course of “Cyber ​​Security” enables students to understand various factors of network insecurity, understand the security tasks faced by the network system and enhance their awareness of security. They should grasp the basic concepts, principles and knowledge architecture of cybersecurity, master and understand the basic computer Network security technology, to master the common network attack technology and ensure the network security methods and techniques. This article introduces the meaning of computer network security, and takes the main hidden danger that affects network security as a breakthrough point, and discusses several security measures of computer network to solve the problem of computer network security.