A server includes a web page service module, a first CGI module and a second CGI module, in which the first CGI module and the second CGI module correspond to applications required to be executed by different respective authorities. In the operations of the server, the web page service module receives a request from a device external to the server, and the web page service module determines contents of the request to select the first CGI module or the second CGI module in order to execute the request.