基于Linux的网络计算机服务器的设计与实现  

The Design and Implementation of Network Computer Server of Linux

作　　者：廖渊[1] 李明树[1] 王青[1] 

机构地区：[1]中国科学院软件研究所互联网软件技术中心,北京100080

出　　处：《计算机工程与应用》2003年第14期12-16,共5页Computer Engineering and Applications

基　　金：国家863高科技研究发展计划重大项目基金:智能化网络访问终端系统(编号:2001AA114060))

摘　　要：由于Linux在电子政务,企业,教育等等方面的推广应用,为网络计算机(NC)提供Linux上的各种应用服务的需求日益迫切,在Linux上实现网络计算机服务器(NCS)可以满足这种需求。文章通过从用户会话管理,Linux应用服务的输入输出传输,图像像素的压缩编码方式,及对不同NC运行环境的自适应性及系统安全配置几个关键方面深入研究与实现了Linux上的网络计算机服务器,使网络服务器能够为NC提供可用的应用服务。NCS为X客户程序的X服务器,目前已有的Linux应用可以不需修改为NC提供服务。另外,为提高系统的适应范围,提出了在会话服务中加入针对NC运行环境和网络属性的反馈式(Feedback)适应策略。文章最后指出了当前方案的不足和今后的研究方向。The demand of Linux application serve r for network computer(NC)is becoming more and more urgent because of the devel opment of Linux in E-government ,enterprise and education.The requirement c an be met by the implementing the network computer server(NCS)of Linux.In thi s paper,in order to provide the usable service to NC,NCS is studied and implem ented through the four aspects about the implementing:session management ,tr ansferring of input and output of Linux application,the encoding of pixel of remote desktop,self-adaptive-ability to the different running environment of NC,security configuration.Since NCS is the X server of X client program,t he standard Linux application can provide services to NC without modification. At the same time ,to improve the availability of system,based on feedback ab out NC running environment ,the authors design the adaptive method in the sess ion service.In the end of this paper,the shortage of the present scheme is p ointed out and the development direction in the future is discussed.

关 键 词：网络计算机 X窗口系统 远程桌面 适应性 LINUX 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]