计算机网络的不断发展,加快了信息化的脚步,同时网络安全问题也日渐突出。在网络上使用数据加密、网络存取控制等安全策略,运用防火墙技术,提高网络安全性能。 The continuous development of computer networks has accelerated the pace of informationization, and network security issues have become increasingly prominent. In the network using data encryption, network access control and other security policies, the use of firewall technology to improve network security.