Programs
httpd - Apache Hypertext Transfer Protocol Server
httpd is the Apache HyperText Transfer Protocol
(HTTP) server program. It is designed to be run as a standalone
daemon process. When used like this it will create a pool of
child processes or threads to handle requests.
In general, httpd should not be invoked directly,
but rather should be invoked via
apachectl on Unix-based systems or as a service on Windows NT,
2000 and XP and as
a console application on Windows 9x and ME.
Starting Apache
Stopping Apache
Configuration Files
Platform-specific Documentation
apachectl
Synopsis
httpd [ -d
serverroot ] [ -f config ]
[ -C directive ] [ -c
directive ] [ -D parameter ]
[ -e level ] [ -E
file ]
[ -k start|restart|graceful|stop|graceful-stop ]
[ -R directory ] [ -h ]
[ -l ] [ -L ] [ -S ]
[ -t ] [ -v ] [ -V ]
[ -X ] [ -M ] [ -T ]
On Windows systems, the
following additional arguments are available:
httpd [ -k
install|config|uninstall ] [ -n name ]
[ -w ]
Options
-d serverroot- Set the initial value for the ServerRoot directive to
serverroot. This can be overridden by the ServerRoot
directive in the configuration file. The default is
/usr/local/apache2.
-f config- Uses the directives in the file config on startup. If
config does not begin with a /, then it is taken to be a
path relative to the ServerRoot. The default is
conf/httpd.conf.
-k start|restart|graceful|stop|graceful-stop- Signals
httpd to start, restart, or stop. See Stopping Apache for more information.
-C directive- Process the configuration directive before reading
config files.
-c directive- Process the configuration directive after reading config
files.
-D parameter- Sets a configuration parameter which can be used with
IfDefine sections
in the configuration files to conditionally skip or process commands
at server startup and restart. Also can be used to set certain
less-common startup parameters including
-DNO_DETACH
(prevent the parent from forking) and -DFOREGROUND
(prevent the parent from calling setsid() et al).
-e level- Sets the LogLevel to
level during server startup. This is useful for
temporarily increasing the verbosity of the error messages to find
problems during startup.
-E file- Send error messages during server startup to file.
-h- Output a short summary of available command line options.
-l- Output a list of modules compiled into the server. This will
not list dynamically loaded modules included using
the LoadModule directive.
-L- Output a list of directives provided by static modules, together with expected arguments and
places where the directive is valid. Directives provided by shared modules are not listed.
-M- Dump a list of loaded Static and Shared Modules.
-S- Show the settings as parsed from the config file (currently only
shows the virtualhost settings).
-T (Availabe in 2.3.8 and later)- Skip document root check at startup/restart.
-t- Run syntax tests for configuration files only. The program
immediately exits after these syntax parsing tests with either a return code
of 0 (Syntax OK) or return code not equal to 0 (Syntax Error). If -D
DUMP_VHOSTS is also set, details of the virtual host
configuration will be printed. If -D DUMP_MODULES is
set, all loaded modules will be printed.
-v- Print the version of
httpd, and then exit.
-V- Print the version and build parameters of
httpd, and
then exit.
-X- Run httpd in debug mode. Only one worker will be started and the
server will not detach from the console.
The following arguments are available only on the Windows platform:
-k install|config|uninstall- Install Apache as a Windows NT service; change startup options for
the Apache service; and uninstall the Apache service.
-n name- The name of the Apache service to signal.
-w- Keep the console window open on error so that the error message can
be read.