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网络安全是所有计算机有关工作的基础,由此而及的网络安全问题也成为从业者关注的焦点。网络建设中的分布式系统主要包括非连接的局域网和与外部连接的局域网,本文就防火墙这一安全防范常用技术进行了分析。
Network security is the basis of all computer-related work, and the resulting network security issues have also become the focus of practitioners. The distributed system in the network construction mainly includes the non-connecting local area network and the local area network which is connected with the outside. This article analyzes the commonly used technology of the firewall.