Internet的安全性及IP安全策略

IP安全工具－IPSec使用了网络通信加密技术。IPsec本来是为下一代IP V6设计的安全协议，但是IPV6的推广速度较慢，而社会对安全的IP协议的要求十分迫切，于是把IPsec重新应用于IPV4。Microsoft和Cisco Systems Inc。共同开发了Windows 2000中的IPSec和相关的服务。但是不幸的是，北美地区以外的Linux发布版本的内核均不支持IPSec。你需要在内核中增加对IPSec的支持，才能使用IPSec软件。本文主要介绍了如何在Windows 2000中使用和配置安全策略，以及在Linux下安装和配置IPSec。

Internet Security and IP Secure Proticol

With frequent use by the government of Internet and electron commerce, network is more and more widely applied and the security of network is more and more important. The IP security tool-IPSec uses network communication encryption techniques. IPSec is a security protocol designed for next generation IPV6, but the spread speed of IPV6 is very slow, and the requirement for secure IP protool is very urgent. So IPSec must be reapply to IPV4. Microsoft and Cisco Systems Inc have opened out the IPSec and correlative serice in Windows 2000. But unluckily, the Linux kernel with the editions except those issued in North America does not sustain IPSec. So you should add the IPSec to the kernel for using IPSec software. This article will explain how to use and configure secure protool, and how to install and configure IPSec in Linux.