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Linux所提供的灵活性和可操作性为开发和配置防火墙以及按特定网络环境的要求构建防火墙,提供了一个价格低廉、性能优良的平台。本文旨在对Linux防火墙设置做一个简要的总结,并通过实例在说明在实际当中如何使用iptables来实现防火墙的功能。
The flexibility and operability offered by Linux provide a low-cost, high-performance platform for developing and configuring firewalls and building firewalls that meet the requirements of specific network environments. This article aims to make a brief summary of Linux firewall settings, and shows how to use iptables in practice to achieve the function of the firewall.