网络安全越来越受到人们的重视。本文结合笔者在网络管理的一些经验体会,从密码、系统、共享目录安全和防火墙技术等方面对网络安全谈了自己的看法和做法,介绍了一些常见的网络攻击及其产生的原因,并阐述了防火墙、入侵检测等网络安全技术。 More and more people pay more attention to network security. This article combines the author’s experience in network management experience, talked about his own views and practices on network security from the aspects of password, system, shared directory security and firewall technology, introduced some common cyber attacks and their causes, and elaborated A firewall, intrusion detection and other network security technology.