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Man Pages


Manual Reference Pages  -  FCGIWRAP (8)

NAME

fcgiwrap - serve CGI applications over FastCGI

CONTENTS

Synopsis
Description
Options
Environment
Example
Author

SYNOPSIS

fcgiwrap [OPTIONS]

DESCRIPTION

fcgiwrap is a simple server for running CGI applications over FastCGI. It hopes to provide clean CGI support to Nginx (and other web servers that may need it).

OPTIONS

-c number
  Number of fcgiwrap processes to prefork.
-f Redirect STDERR output from executed CGI through FastCGI so it shows in the web server error log. Otherwise it would be returned on fcgiwrap’s STDERR, which could be redirected. If running through spawn-fcgi, fcgiwrap’s STDERR is sent to /dev/null, so this option provides a way to get that output back.
-s socket_url
  A URL for the listen socket to bind to. By default fcgiwrap expects a listen socket to be passed on file descriptor 0, matching the FastCGI convention. The recommended way to deploy fcgiwrap is to run it under a process manager that takes care of opening the socket. However, for simple configurations and one-off tests this option may be used. Valid socket_urls include unix:/path/to/unix/socket, tcp:dot.ted.qu.ad:port and tcp6:[ipv6_addr]:port.
-p path Restrict execution to the given path. Repeated options will be merged.
-h Show a help message and exit.

ENVIRONMENT

When running, fcgiwrap evaluates these environment variables set by the web server calling an fcgi-script. The variables DOCUMENT_ROOT and SCRIPT_NAME will be concatenated and the resulting executable run as CGI script wrapped as FastCGI, with the remainder after the script name available as PATH_INFO. To disable PATH_INFO mangling, set up your web server to pass SCRIPT_FILENAME, which should contain the complete path to the script. Then PATH_INFO will not be modified.

DOCUMENT_ROOT

directory which the script resides in
SCRIPT_NAME
actual executable
SCRIPT_FILENAME
complete path to CGI script. When set, overrides DOCUMENT_ROOT and SCRIPT_NAME

EXAMPLE

The fastest way to see fcgiwrap do something is to launch it at the command line like this:
fcgiwrap -s unix:/var/run/fcgiwrap.sock
Apart from potential permission problems etc., it should be ready to accept FastCGI requests and run CGI scripts.

Most probably you will want to launch fcgiwrap by spawn-fcgi using a configuration like this:

FCGI_SOCKET=/var/run/fcgiwrap.sock
FCGI_PROGRAM=/usr/sbin/fcgiwrap
FCGI_USER=nginx
FCGI_GROUP=www
FCGI_EXTRA_OPTIONS="-M 0700"
ALLOWED_ENV="PATH"

Nginx can be configured to have the arbitrary CGI cgit run as FastCGI as follows:

location / {
        fastcgi_param DOCUMENT_ROOT /var/www/localhost/htdocs/cgit/;
        fastcgi_param SCRIPT_NAME cgit;
        fastcgi_pass unix:/var/run/fastcgi.sock;
}

AUTHOR

fcgiwrap was written by Grzegorz Nosek <root@localdomain.pl> with contributions by W-Mark Kubacki <wmark@hurrikane.de>.

This manual page was written by Jordi Mallach <jordi@debian.org> (with contributions by Grzegorz Nosek) for the Debian project (and may be used by others).

The -p option was contributed by <takefu@airport.fm> as an addition to the FreeBSD port.

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--> FCGIWRAP (8) Jun 3, 2010

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