Web服务器又称WWW服务器、网站服务器或站点服务器，就是将本地的信息用超文本组织，为用户在Internet上搜索和浏览信息提供服务。从本质上来说，Web服务器实际上就是一个软件系统。一台计算机可以充当多个Web服务器。为提高用户的访问效率，一般情况下一台计算机只充当一个Web服务器；为提供大量用户的访问，多台计算机可以形成集群，只提供一个Web服务。通常将只充当一个Web服务器的一台计算机叫做Web服务器。-Web server, also known as WWW server, web server or site server is to use local information hypertext organization, for users in Internet search and browse information on the provision of services. Essentially, Web server is actually a software system. A computer can act as a number of Web servers. In order to enhance the efficiency of the user s visit, the general situation of the next computer only act as a Web server　to provide a large number of users visit more than one computer clusters can be formed only to provide a Web service. Usually will only act as a Web server on a single computer called the Web server.