网络安全的关键技术

随着互联网的飞速发展,网络安全逐渐成为一个潜在的巨大问题。很多企业为了保障自身服务器或数据安全都采用了防火墙。防火墙是网络安全的关键技术。其核心思想是在不安全的网络环境中构造一个相对安全的子网环境。采用防火墙是网络安全最主要、最核心、最有效的手段之一。文章重点讨论防火墙定义、防火墙的工作原理、防火墙的功能、防火墙的安全功能、防火墙技术及防火墙的主要优点和缺点。

Key Technology of Network Security

With the rapid development of Internet,network security has become a potentially big problem.Many enterprises have adopted the firewall in order to protect their own server or data security.Firewall is a key network security technology.The core idea is to construct a relatively safe environment for the subnet in an insecure network environment.And the network security firewall is one of the most important,central and effective means.This paper focuses on the following aspects of the firewall such as the definition,working principles,security function,technology and its main advantages and disadvantages.