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| <title>mod_info - Apache HTTP Server</title> |
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| <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> |
| <p class="apache">Apache HTTP Server Version 2.3</p> |
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| <a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Modules</a></div> |
| <div id="page-content"> |
| <div id="preamble"><h1>Apache Module mod_info</h1> |
| <div class="toplang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_info.html" title="English"> en </a> | |
| <a href="../ja/mod/mod_info.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | |
| <a href="../ko/mod/mod_info.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> |
| </div> |
| <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides a comprehensive overview of the server |
| configuration</td></tr> |
| <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>info_module</td></tr> |
| <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_info.c</td></tr></table> |
| <h3>Summary</h3> |
| |
| <p>To configure <code class="module"><a href="../mod/mod_info.html">mod_info</a></code>, add the following to your |
| <code>httpd.conf</code> file.</p> |
| |
| <div class="example"><p><code> |
| <Location /server-info><br /> |
| <span class="indent"> |
| SetHandler server-info<br /> |
| </span> |
| </Location> |
| </code></p></div> |
| |
| <p>You may wish to use <code class="module"><a href="../mod/mod_access.html">mod_access</a></code> inside the |
| <code class="directive"><a href="../mod/core.html#location"><Location></a></code> |
| directive to limite access to your server configuration |
| information:</p> |
| |
| <div class="example"><p><code> |
| <Location /server-info><br /> |
| <span class="indent"> |
| SetHandler server-info<br /> |
| Order deny,allow<br /> |
| Deny from all<br /> |
| Allow from yourcompany.com<br /> |
| </span> |
| </Location> |
| </code></p></div> |
| |
| <p>Once configured, the server information is obtained by |
| accessing <code>http://your.host.example.com/server-info</code></p> |
| </div> |
| <div id="quickview"><h3 class="directives">Directives</h3> |
| <ul id="toc"> |
| <li><img alt="" src="../images/down.gif" /> <a href="#addmoduleinfo">AddModuleInfo</a></li> |
| </ul> |
| <h3>Topics</h3> |
| <ul id="topics"> |
| <li><img alt="" src="../images/down.gif" /> <a href="#security">Security Issues</a></li> |
| <li><img alt="" src="../images/down.gif" /> <a href="#queries">Selecting the information shown</a></li> |
| <li><img alt="" src="../images/down.gif" /> <a href="#limitations">Known Limitations</a></li> |
| </ul></div> |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="section"> |
| <h2><a name="security" id="security">Security Issues</a></h2> |
| <p>Once <code class="module"><a href="../mod/mod_info.html">mod_info</a></code> is loaded into the server, its |
| handler capability is available in <em>all</em> configuration |
| files, including per-directory files (<em>e.g.</em>, |
| <code>.htaccess</code>). This may have security-related |
| ramifications for your site.</p> |
| |
| <p>In particular, this module can leak sensitive information |
| from the configuration directives of other Apache modules such as |
| system paths, usernames/passwords, database names, etc. Therefore, |
| this module should <strong>only</strong> be |
| used in a controlled environment and always with caution.</p> |
| |
| <p>You will probably want to use <code class="module"><a href="../mod/mod_authz_host.html">mod_authz_host</a></code> |
| to limit access to your server configuration information.</p> |
| |
| <div class="example"><h3>Access control</h3><p><code> |
| <Location /server-info><br /> |
| <span class="indent"> |
| SetHandler server-info<br /> |
| Order allow,deny<br /> |
| # Allow access from server itself<br /> |
| Allow from 127.0.0.1<br /> |
| # Additionally, allow access from local workstation<br /> |
| Allow from 192.168.1.17<br /> |
| </span> |
| </Location> |
| </code></p></div> |
| </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="section"> |
| <h2><a name="queries" id="queries">Selecting the information shown</a></h2> |
| <p>By default, the server information includes a list of |
| all enabled modules, and for each module, a description of |
| the directives understood by that module, the hooks implemented |
| by that module, and the relevant directives from the current |
| configuration.</p> |
| |
| <p>Other views of the configuration information are available by |
| appending a query to the <code>server-info</code> request. For |
| example, <code>http://your.host.example.com/server-info?config</code> |
| will show all configuration directives.</p> |
| |
| <dl> |
| <dt><code>?<module-name></code></dt> |
| <dd>Only information relevant to the named module</dd> |
| <dt><code>?config</code></dt> |
| <dd>Just the configuration directives, not sorted by module</dd> |
| <dt><code>?hooks</code></dt> |
| <dd>Only the list of Hooks each module is attached to</dd> |
| <dt><code>?list</code></dt> |
| <dd>Only a simple list of enabled modules</dd> |
| <dt><code>?server</code></dt> |
| <dd>Only the basic server information</dd> |
| </dl> |
| </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="section"> |
| <h2><a name="limitations" id="limitations">Known Limitations</a></h2> |
| <p><code class="module"><a href="../mod/mod_info.html">mod_info</a></code> provides its information by reading the |
| parsed configuration, rather than reading the original configuration |
| file. There are a few limitations as a result of the way the parsed |
| configuration tree is created:</p> |
| <ul> |
| <li>Directives which are executed immediately rather than being |
| stored in the parsed configuration are not listed. These include |
| <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code>, |
| <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code>, and |
| <code class="directive"><a href="../mod/mod_so.html#loadfile">LoadFile</a></code>.</li> |
| <li>Directives which control the configuration file itself, such as |
| <code class="directive"><a href="../mod/core.html#include">Include</a></code>, |
| <code class="directive"><a href="../mod/core.html#<ifmodule>"><IfModule></a></code> and |
| <code class="directive"><a href="../mod/core.html#<ifdefine>"><IfDefine></a></code> are not |
| listed, but the included configuration directives are.</li> |
| <li>Comments are not listed. (This may be considered a feature.)</li> |
| <li>Configuration directives from <code>.htaccess</code> files are |
| not listed (since they do not form part of the permanent server |
| configuration).</li> |
| <li>Container directives such as |
| <code class="directive"><a href="../mod/core.html#<directory>"><Directory></a></code> |
| are listed normally, but <code class="module"><a href="../mod/mod_info.html">mod_info</a></code> cannot figure |
| out the line number for the closing |
| <code class="directive"><a href="../mod/core.html#</directory>"></Directory></a></code>.</li> |
| <li>Directives generated by third party modules such as <code class="module"><a href="../mod/mod_perl.html">mod_perl</a></code> |
| might not be listed.</li> |
| </ul> |
| </div> |
| <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> |
| <div class="directive-section"><h2><a name="AddModuleInfo" id="AddModuleInfo">AddModuleInfo</a> <a name="addmoduleinfo" id="addmoduleinfo">Directive</a></h2> |
| <table class="directive"> |
| <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Adds additional information to the module |
| information displayed by the server-info handler</td></tr> |
| <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AddModuleInfo <var>module-name</var> <var>string</var></code></td></tr> |
| <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr> |
| <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr> |
| <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_info</td></tr> |
| <tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Apache 1.3 and above</td></tr> |
| </table> |
| <p>This allows the content of <var>string</var> to be shown as |
| HTML interpreted, <strong>Additional Information</strong> for |
| the module <var>module-name</var>. Example:</p> |
| |
| <div class="example"><p><code> |
| AddModuleInfo mod_deflate.c 'See <a \<br /> |
| <span class="indent"> |
| href="http://www.apache.org/docs/trunk/mod/mod_deflate.html">\<br /> |
| http://www.apache.org/docs/trunk/mod/mod_deflate.html</a>' |
| </span> |
| </code></p></div> |
| |
| </div> |
| </div> |
| <div class="bottomlang"> |
| <p><span>Available Languages: </span><a href="../en/mod/mod_info.html" title="English"> en </a> | |
| <a href="../ja/mod/mod_info.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | |
| <a href="../ko/mod/mod_info.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p> |
| </div><div id="footer"> |
| <p class="apache">Copyright 1995-2005 The Apache Software Foundation or its licensors, as applicable.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p> |
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