The security mechanism in the World Wide Web (WWW) and the Common Gateway Interface (CGI). Example of Central Police University entrance examination system

Information is widely spread on the Internet. The World Wide Web (WWW) is currently exploding and developing into many applications around the world. The WWW provides interactive texts, images, sounds, and motion pictures by communication via computer network. It makes integration of databases to produce a more fancy and more friendly network media. As we know, most of the business applications focus on the Internet transmission. The customer may order the product directly on the Internet. In this research, we offer the Common Gateway Interface (CGI) mechanism to combine WWW with conventional databases to provide a good user interface. We discuss not only the theories of WWW with CGI mechanisms, but offer server security issues and the efficiency of program execution. We also illustrate our Central Police University Entrance Examination System as an example.