Linux网络安全技术

Linux Network Security Technology

计算机安全是一个热门话题,它受到网民越来越多的关注。Linux是类Unix的操作系统,它具有Unix的所有特性,在安全性上与Unix一样具有非常严谨的体系结构。文章从网络安全技术方面论述了Linux系统在网络上的安全方法,介绍了对客户机器设置访问权限及利用防火墙技术来保障网络的安全,详细讲述了包过滤防火墙技术(Netfilter)的结构和在网络中的位置。

Computer security is a hot topic, more and more Intemet users are concerning about computer security. Linux is a operating system like Unix. It has all the features of Unix operating system. Linux system has a very strict structure like Unix in security. This paper discusses the network security of Linux system from the technical aspects of network security. The paper introduces methods of protecting network security which set the right to accessing the customer machine and use firewall technology. Describe detailed the Netfilter＇s structure and Netfilter＇s position in network.