CGI Scripts - Perl

Common Gateway Interface or CGI, is a method of running executable scripts on web servers which will perform certain tasks, whether it be running message boards, chat rooms, managing mailing lists, or handling forms. It isn't a programming language, but a technology in itself. CGI defines how programs pass information back and forth between web servers and clients. The most common languages CGI is written in, are Perl, C, or UNIX shell script...however you can write CGI programs in just about any programming language that can execute on your server's hardware. Just like any programs that execute on the server, security is always a concern, as you want to be careful when writing the script that you are not executing any of the users data. Not all web servers will support CGI scripting, as many ISP's are concerned about letting users place scripts onto the server, mainly for security reasons.

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