SSL CipherSpec: IBM HTTP Server
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Working with the Fast Common Gateway Interface protocol

This section provides an information overview of the Fast Common Gateway Interface (FastCGI) protocol, FastCGI applications and the FastCGI Web site. Links to related topics appear at the end of this section.

Learning about the Fast Common Gateway Interface protocol

This third-party module provides support for the FastCGI protocol. FastCGI, a language independent, scalable, open extension to Common Gateway Interface (CGI), provides high performance and persistence without the limitations of server-specific APIs.

This open protocol does not limit FastCGI applications to a particular development language. FastCGI application libraries currently exist for Perl, C/C++, Java, Python and the transmission control layer (TCL).

Using Fast Common Gateway Interface applications

FastCGI applications use TCP or UNIX sockets to communicate with the Web server. This scalable architecture enables applications to run on the same platform as the Web server, or on many machines scattered across an enterprise network.

You can port FastCGI applications to other Web server platforms. Most popular Web servers support FastCGI directly, or through commercial extensions.

FastCGI applications run fast because of their persistency. These applications require no per-request startup and initialization overhead. This persistency enables the development of applications, otherwise impractical within the CGI paradigm, like a huge Perl script, or an application requiring a connection to one or more databases.

Sending mail to the Fast Common Gateway Interface Web site

For more information on FastCGI, go to the FastCGI Web site. To receive FastCGI related announcements and notifications of module updates, send mail to with subscribe in the Subject field. To participate in the discussion of mod_fastcgi and FastCGI application development, send mail to with subscribe in the Subject field.

The IBM HTTP Server Fast CGI plug-in provides an alternative method of producing dynamic content.

Finding related information

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