slowcgi
— a
FastCGI to CGI wrapper server
slowcgi |
[-dv ] [-p
path] [-s
socket] [-t
timeout] [-U
user] [-u
user] |
slowcgi
is a server which implements the
FastCGI Protocol to execute CGI scripts. FastCGI was designed to overcome
the CGI protocol's scalability and resource sharing limitations. While CGI
scripts need to be forked for every request, FastCGI scripts can be kept
running and handle many HTTP requests.
slowcgi
is a simple server that translates
FastCGI requests to the CGI protocol. It executes the requested CGI script
and translates its output back to the FastCGI protocol.
Modern web frameworks and web applications usually come with the
capability to run as FastCGI servers. slowcgi
is not
intended for these applications.
slowcgi
opens a socket at
/var/www/run/slowcgi.sock, owned by www:www, with
permissions 0660. It will then
chroot(8)
to /var/www and drop privileges to user
"www".
The options are as follows:
-d
- Do not daemonize. If this option is specified,
slowcgi
will run in the foreground and log to
stderr.
-p
path
- chroot(2)
to path. A path of
/ effectively disables the chroot.
-s
socket
- Create and bind to alternative local socket at
socket.
-t
timeout
- Terminate the request after timeout seconds instead
of the default 120 seconds. The CGI script is left to run but its standard
input, output and error will be closed.
-U
user
- Change the owner of /var/www/run/slowcgi.sock to
user and its primary group instead of the default
www:www.
-u
user
- Drop privileges to user instead of default user www
and
chroot(8)
to the home directory of user.
-v
- Enable more verbose (debug) logging.
Mark R. Brown,
FastCGI Specification, April
1996.
D. Robinson, K. Coar,
The Common Gateway Interface (CGI) Version 1.1,
RFC 3875, October
2004.
The slowcgi
server first appeared in
OpenBSD 5.4.
slowcgi
only implements the parts of the
FastCGI standard needed to execute CGI scripts. This is intentional.