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<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE manualpage SYSTEM "../style/manualpage.dtd">
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<manualpage metafile="httpd.xml.meta">
<parentdocument href="./">Programs</parentdocument>
<title>httpd - Apache Hypertext Transfer Protocol Server</title>
<summary>
<p><code>httpd</code> 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.</p>
<p>In general, <code>httpd</code> should not be invoked directly,
but rather should be invoked via <program>
apachectl</program> on Unix-based systems or <a
href="../platform/windows.html#winsvc">as a service on Windows NT,
2000 and XP</a> and <a href="../platform/windows.html#wincons">as
a console application on Windows 9x and ME</a>.</p>
</summary>
<seealso><a href="../invoking.html">Starting Apache</a></seealso>
<seealso><a href="../stopping.html">Stopping Apache</a></seealso>
<seealso><a href="../configuring.html">Configuration Files</a></seealso>
<seealso><a href="../platform/">Platform-specific Documentation</a></seealso>
<seealso><program>apachectl</program></seealso>
<section id="synopsis"><title>Synopsis</title>
<p><code><strong>httpd</strong> [ -<strong>d</strong>
<var>serverroot</var> ] [ -<strong>f</strong> <var>config</var> ]
[ -<strong>C</strong> <var>directive</var> ] [ -<strong>c</strong>
<var>directive</var> ] [ -<strong>D</strong> <var>parameter</var> ]
[ -<strong>e</strong> <var>level</var> ] [ -<strong>E</strong>
<var>file</var> ]
[ <strong>-k</strong> start|restart|graceful|stop|graceful-stop ]
[ -<strong>R</strong> <var>directory</var> ] [ -<strong>h</strong> ]
[ -<strong>l</strong> ] [ -<strong>L</strong> ] [ -<strong>S</strong> ]
[ -<strong>t</strong> ] [ -<strong>v</strong> ] [ -<strong>V</strong> ]
[ -<strong>X</strong> ] [ -<strong>M</strong> ] [ -<strong>T</strong> ]
</code></p>
<p>On <a href="../platform/windows.html">Windows systems</a>, the
following additional arguments are available:</p>
<p><code><strong>httpd</strong> [ -<strong>k</strong>
install|config|uninstall ] [ -<strong>n</strong> <var>name</var> ]
[ -<strong>w</strong> ]</code></p>
</section>
<section id="options"><title>Options</title>
<dl>
<dt><code>-d <var>serverroot</var></code></dt>
<dd>Set the initial value for the <directive
module="core">ServerRoot</directive> directive to
<var>serverroot</var>. This can be overridden by the ServerRoot
directive in the configuration file. The default is
<code>/usr/local/apache2</code>.</dd>
<dt><code>-f <var>config</var></code></dt>
<dd>Uses the directives in the file <var>config</var> on startup. If
<var>config</var> does not begin with a /, then it is taken to be a
path relative to the <directive
module="core">ServerRoot</directive>. The default is
<code>conf/httpd.conf</code>.</dd>
<dt><code>-k <code>start|restart|graceful|stop|graceful-stop</code></code></dt>
<dd>Signals <code>httpd</code> to start, restart, or stop. See <a
href="../stopping.html">Stopping Apache</a> for more information.</dd>
<dt><code>-C <var>directive</var></code></dt>
<dd>Process the configuration <var>directive</var> before reading
config files.</dd>
<dt><code>-c <var>directive</var></code></dt>
<dd>Process the configuration <var>directive</var> after reading config
files.</dd>
<dt><code>-D <var>parameter</var></code></dt>
<dd>Sets a configuration <var>parameter </var>which can be used with
<directive type="section" module="core">IfDefine</directive> 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 <code>-DNO_DETACH</code>
(prevent the parent from forking) and <code>-DFOREGROUND</code>
(prevent the parent from calling <code>setsid()</code> et al).</dd>
<dt><code>-e <var>level</var></code></dt>
<dd>Sets the <directive module="core">LogLevel</directive> to
<var>level</var> during server startup. This is useful for
temporarily increasing the verbosity of the error messages to find
problems during startup.</dd>
<dt><code>-E <var>file</var></code></dt>
<dd>Send error messages during server startup to <var>file</var>.</dd>
<dt><code>-h</code></dt>
<dd>Output a short summary of available command line options.</dd>
<dt><code>-l</code></dt>
<dd>Output a list of modules compiled into the server. This will
<strong>not</strong> list dynamically loaded modules included using
the <directive module="mod_so">LoadModule</directive> directive.</dd>
<dt><code>-L</code></dt>
<dd>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.</dd>
<dt><code>-M</code></dt>
<dd>Dump a list of loaded Static and Shared Modules.</dd>
<dt><code>-S</code></dt>
<dd>Show the settings as parsed from the config file (currently only
shows the virtualhost settings).</dd>
<dt><code>-T</code> (Availabe in 2.3.8 and later)</dt>
<dd>Skip document root check at startup/restart.</dd>
<dt><code>-t</code></dt>
<dd>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
<var>DUMP</var>_<var>VHOSTS </var>is also set, details of the virtual host
configuration will be printed. If -D <var>DUMP</var>_<var>MODULES </var> is
set, all loaded modules will be printed.</dd>
<dt><code>-v</code></dt>
<dd>Print the version of <code>httpd</code>, and then exit.</dd>
<dt><code>-V</code></dt>
<dd>Print the version and build parameters of <code>httpd</code>, and
then exit.</dd>
<dt><code>-X</code></dt>
<dd>Run httpd in debug mode. Only one worker will be started and the
server will not detach from the console.</dd>
</dl>
<p>The following arguments are available only on the <a
href="../platform/windows.html">Windows platform</a>:</p>
<dl>
<dt><code>-k install|config|uninstall</code></dt>
<dd>Install Apache as a Windows NT service; change startup options for
the Apache service; and uninstall the Apache service.</dd>
<dt><code>-n <var>name</var></code></dt>
<dd>The <var>name</var> of the Apache service to signal.</dd>
<dt><code>-w</code></dt>
<dd>Keep the console window open on error so that the error message can
be read.</dd>
</dl>
</section>
</manualpage>
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