py as well.īy default, the Linux server is configured to run only the scripts in the cgi-bin directory in /var/file − This directory is called CGI Directory and by convention it is named as /var/cgi, but you can keep your files with python extension. All the CGI Programs to be executed by the HTTP server are kept in a pre-configured directory. CGI Architecture Diagram Web Server Support and Configurationīefore you proceed with CGI Programming, make sure that your Web Server supports CGI and it is configured to handle CGI Programs. These CGI programs can be a Python Script, PERL Script, Shell Script, C or C++ program, etc. This function is called the Common Gateway Interface or CGI and the programs are called CGI scripts. However, it is possible to set up the HTTP server so that whenever a file in a certain directory is requested that file is not sent back instead it is executed as a program, and whatever that program outputs is sent back for your browser to display. Web browser takes response from web server and displays either the received file or error message. If it finds that file then sends it back to the browser, otherwise sends an error message indicating that you requested a wrong file. Web Server parses the URL and looks for the filename. Your browser contacts the HTTP web server and demands for the URL, i.e., filename. To understand the concept of CGI, let us see what happens when we click a hyper link to browse a particular web page or URL. The current version is CGI/1.1 and CGI/1.2 is under progress. The Common Gateway Interface, or CGI, is a standard for external gateway programs to interface with information servers such as HTTP servers. The CGI specs are currently maintained by the NCSA. The Common Gateway Interface, or CGI, is a set of standards that define how information is exchanged between the web server and a custom script.

Cgi bin location