运用Linux系统打造NAT防火墙的技术研究与实现  

Application of Linux system to build the NAT firewall technology research and realization

作　　者：祝虹[1] 吉承平[1] 

机构地区：[1]扬州职业大学,江苏扬州225009

出　　处：《电子设计工程》2013年第3期17-19,共3页Electronic Design Engineering

基　　金：江苏省现代教育技术研究重点课题(2012-R-22269)

摘　　要：针对因特网地址匮乏及网络安全性等问题,详细介绍了NAT技术的工作原理及其在防火墙中的应用。阐述了在Linux系统下打造NAT防火墙的设计方案和策略,并且给出了基于NAT的防火墙的具体设置步骤和所实现的检测结果。在对NAT技术的安全性进行了具体分析的基础之上,结合设计中出现的问题,进一步探讨了需要改进的措施和方法。由此得出打造系统安全防火墙所需要的技术实现的方法和思路。This article mainly aims at the Internet address scarcity and network security issues, describes in detail the work principle of NAT technology and its application in firewall. Elaborated under the Linux system to build the NAT firewall design and strategy, and gives the firewall based on NAT set specific steps and realizes the detection results. On the security of NAT technology of concrete on the basis of the analysis, combined with the problems in the design, further explores the need for improvement measures and methods. The resulting build system security firewall techniques needed for realizing method and train of thouzht.

关 键 词：LINUX NAT SNAT DNAT 防火墙 IP地址 包过滤 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]