计算机网络技术的突飞猛进。一方面人们在享受数字的跳动、数据传输的便利中,另一方面又在担忧个人的隐私以及权益是否被人侵犯,所以网络安全的问题已经日益突出地摆在各类用户的面前,网络安全问题越来越受到重视,各种网络安全保护机制得到迅速发展,而防火墙自然而然流行起来。它作为一道防御系统,能够很好的将外界网络隔离 Computer network technology by leaps and bounds. On the one hand, people are enjoying the beat of numbers and the convenience of data transmission. On the other hand, they worry about personal privacy and whether their rights and interests have been violated. Therefore, the problem of network security has become increasingly prominent in front of all kinds of users. Network security More and more attention has been paid to the issue. Various network security protection mechanisms have been rapidly developed, and firewalls have naturally become popular. It acts as a defensive system that isolates the outside world well