谁能帮我把这段论文摘要翻译成英文？谢谢啦！基于Iptables的网络防火墙摘要本文介绍了如何使用iptables在LINUX中建立的一套完整的防火墙规则.首先介绍了什么是网络防火墙,对其类型,任务

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谁能帮我把这段论文摘要翻译成英文？谢谢啦！基于Iptables的网络防火墙 摘要 本文介绍了如何使用iptables在LINUX中建立的一套完整的防火墙规则. 首先介绍了什么是网络防火墙,对其类型,任务做了详细的说明.接着在iptables的数据包过滤机制中对iptables的表格与数据包进入主机的流程及语法进行了阐述.最后重点对如何设置防火墙进行分析与设计. 本文的主要工作是通过向防火墙提供有关对来自某个源、到某个目的地或具有特定协议类型的信息包要做些什么的指令的规则，控制信息包的过滤。通过使用iptables系统提供的特殊命令 iptables，建立这些规则，并将其添加到内核空间的特定信息包过滤表内的链中。从而实现对防火墙的管理和使用. 关键词: 网络防火墙 防火墙规则 iptables 数据包过滤 网络端口

Answer 1

This article describes how to use iptables in LINUX created a complete set of firewall rules. What is first introduced the network firewall, its type, the task has done a detailed explanation. Then iptables packet filtering mechanism in the form of iptables packet flow entering the host and the syntax are described. Finally, focus on how to set up analysis and design of the firewall. This article's main task is to provide information through the firewall from a source to a destination or type of agreement with a specific packet of instructions what to do rules, control packet filtering. Iptables system through the use of special command iptables, the establishment of these rules, and add it to kernel space specific information within the packet filter table chain. The firewall in order to achieve the management and use. Key words: network firewall Firewall rules Iptables Packet filtering Network ports