Linux防火墙技术及配置实例

随着网络在人们工作和生活中的作用越来越重要,对网络安全性的要求也越来越高。建立防火墙是分隔内外网的有效措施。而Linux系统自带的防火墙工具—netfilter/iptables凭借免费、功能强、使用灵活等优点越来越多地应用到网络中。本文就Linux防火墙做了分析,并且用实例介绍了如何在Linux下通过netfilter/iptables配置防火墙。

Firewall technology and configuration examples based on Linux

Setting up the firewall is one of the effective measures to isolate the internal network from the external for the network security becomes more and more important nowadays.Netfilter/iptables,which is self-contained by Linux,is in-creasingly applied in network for its free of charge,powerful functionality and better flexibility.This paper analyzed Linux and introduced how to configurate a Linux-based firewall with examples.