摘要： 随着Ｉｎｔｅｒｎｅｔ应用的普及，其安全性问题也日益突出。详细讨论了如何利用Ｌｉｎｕｘ操作系统构建防火墙和代理服务器，以实现内部网络的存取访问控制和流量统计的功能。

关键词: 防火墙, Linux操作系统, 代理服务器

Abstract: With the development of computer network, the security of various applications on Internet became a severe problem. The paper discusses the technical details in constructing the firewall using Linux operating system and implementing access control and flow statistic to and from internal network.

中图分类号: 

• TP393