| 基于PC架构Linux NAT性能优化 |
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| 引用本文： | 朱宁,许晓东.基于PC架构Linux NAT性能优化[J].华中科技大学学报(自然科学版),2003(Z1). |
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| 作者姓名： | 朱宁 许晓东 |
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| 作者单位： | 江苏大学网络中心 |
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| 摘 要： | 阐述了采用Netfilter/iptables技术来实现NAT的缘由 ,并分析了此项技术在Linux内核 2 .4中的一个重要新特性 ,即“连接跟踪” ;着重讨论了提高基于配有Linux操作系统的普通PC机上的NAT性能的方法 ,包括重编内核 ,防止空对话及修改tcp连接超时设定 ;通过一组系统状态监测曲线图证明这样一个廉价系统作为一些昂贵的路由设备的替代是稳定可靠的
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| 关 键 词： | NAT Linux内核 性能优化 |
The Linux NAT performance optimization based on PC |
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| Zhu Ning Xu Xiaodong Postgraduate, Network Center,Jiangshu University,Nanjing ,China..The Linux NAT performance optimization based on PC[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003(Z1). |
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| Authors: | Zhu Ning Xu Xiaodong Postgraduate Network Center Jiangshu University Nanjing China |
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| Institution: | Zhu Ning Xu Xiaodong Postgraduate, Network Center,Jiangshu University,Nanjing 212013,China. |
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| Abstract: | The paper first points out the reasons we adopt Netfilter/iptables and analyses "Connection tracking", which is a new and important feature of netfilter in kernel 2.4, then focuses on the methods to improve the performance of NAT based on an ordinary PC with Linux, including recompiling kernel, preventing idle sessions and resetting timeouts of tcp connection. At the end of the paper, such a low-cost system, as the replacement for some expensive special router devices, proves to be stable and reliable, according to a set of monitor graphs describing the system states. |
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| Keywords: | NAT Linux kernel performance optimization |
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