试论计算机防火墙技术及其应用

随着科技的发展，人们可以在网上完成各种交易，避免了现金交易的繁琐。但是网络在为人们带来便利的同时也带来了隐患，资金的流动不再可见，资金的安全也变得难以保障，因而网络安全开始变得更加重要。从防火墙的概念、分类、优劣势等方面出发，讨论计算机防火墙技术的应用。

On the computer firewall technology and its application

With the development of science, we can make various transactions online, avoiding the complicated procedure in the currency transaction. While the internet brings risk together with convenience. There is no more currency transfer, but the security of fund is no longer guaranteed. It is most important to make a secure internet environment. This paper makes a discussion of the concept, classification, advantage and disadvantage of firewall, to give an application proposal of computer firewall.