Apache hypertext transfer protocol Web server. It is designed to be run as a standalone daemon process.
Now lets see the manual of httpd service.Manual httpd:NAME
httpd - Apache Hypertext Transfer Protocol ServerSYNOPSIS
httpd [ -d serverroot ] [ -f config ] [ -C directive ] [ -c directive ] [ -D parameter ] [ -e level ] [ -E file ] [
-k start|restart|graceful|stop ] [ -R directory ] [ -h ] [ -l ] [ -L ] [ -S ] [ -t ] [ -v ] [ -V ] [ -X ]
On Windows systems, the following additional arguments are available:
httpd [ -k install|config|uninstall ] [ -n name ] [ -w ]SUMMARY
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.OPTIONS
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 /etc/httpd.
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.
Signals httpd to start, restart, or stop. See Stopping Apache for more information.
Process the configuration directive before reading config files.
Process the configuration directive after reading config files.
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.
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.
Send error messages during server startup to file.
When the server is compiled using the SHARED_CORE rule, this specifies the directory for the shared object
-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 together with expected arguments and places where the directive is valid.
-S Show the settings as parsed from the config file (currently only shows the virtualhost settings).
-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.
-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:
Install Apache as a Windows NT service; change startup options for the Apache service; and uninstall the
The name of the Apache service to signal.
-w Keep the console window open on error so that the error message can be read.