本文分析了当前网络的安全现状、所面临的安全威胁、安全需求以及网络安全技术的最新发展,提出了建立包括网络安全隔离、入侵检测系统、漏洞扫描、防病毒系统、安全管理以及系统的备份与恢复等方面的网络安全防范体系。 This paper analyzes the current network security status quo, the security threats, security needs and the latest development of network security technology, the establishment of a network backup including security isolation, intrusion detection system, vulnerability scanning, anti-virus system, security management and system And recovery and other aspects of network security system.