随着时代的发展,Interne日益普及,网络已经成为信息资源的海洋,给人们带来了极大的方便。但由于Internet是一个开放的,无控制机构的网络,经常会受到计算机病毒、黑客的侵袭。它可使计算机和计算机网络数据和文件丢失,系统瘫痪。因此,计算机网络系统安全问题必须放在首位。本文介绍了计算机系统安全的维护措施。给计算机网络工作人员有一定的帮助。 With the development of the times, Interne has become more and more popular. The Internet has become a sea of ​​information resources and has brought great convenience to people. However, because the Internet is an open, uncontrolled network, it is often hit by computer viruses and hackers. It can make the computer and computer network data and files lost, the system paralyzed. Therefore, the computer network system security issues must be given priority. This article describes the maintenance of computer system security measures. To the computer network staff have some help.