论文部分内容阅读
随着宽带上网的逐渐推广,多台计算机共享一个Internet高带宽的连接越来越重要。特别是一些规模较小的学校、科研单位和企业等,由于难以负担足够的IP地址的费用,对共享IP上网有比较迫切的需要。目前常见的作法有两种:一是购买专门的服务器,用于网络地址翻译(NAT);二是在一台网关计算机上安装NAT软件或者应用程序代理服务软件,其他计算机通过这个网关上网。第一种方法虽然安装、维护比较简便,性能好,但是需要进行一定的设备投资,并且服务器的功能相对比较单一,难以实现其他Internet服务。第二种方法如果网关计算机的操作系统使用Windows 95/98,则稳定性不好,不适合长期开机;使用 Windows NT/2000,则对硬件配置要求相对较高。
With the gradual popularization of broadband Internet access, it is more and more important that multiple computers share an Internet high bandwidth connection. In particular, some smaller schools, research institutes and enterprises have a more urgent need to share IP Internet access due to the difficulty of paying enough IP addresses. Currently there are two common practices: First, buy a dedicated server for network address translation (NAT); Second, a gateway computer to install NAT software or application proxy service software, other computers through the gateway to the Internet. Although the first method is simple to install and maintain, and has good performance, it requires some equipment investment and the function of the server is relatively simple, making it difficult to realize other Internet services. The second method if the gateway computer’s operating system using Windows 95/98, the stability is not good, not suitable for long-term boot; With Windows NT / 2000, the hardware configuration requirements are relatively high.