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防火墙是Internet上公认网络存取控制最佳的安全解决方案,并且已经正式列入信息安全机制范畴中;防火墙是软硬件的结合体,架设在网络之间以确保安全的连接。
Firewalls are recognized as the best security solution for Internet access control on the Internet and have been formally included in the category of information security mechanisms. Firewalls are a combination of hardware and software that are erected between networks to ensure secure connections.