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fe9dca85c9e1544931fb420615372c10c0181ea7nd<title>How-To / Tutorials - Apache HTTP Server</title>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<link href="/style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<body id="manual-page" class="no-sidebar"><div id="page-header">
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<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>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<p class="apache">Apache HTTP Server Version 2.3</p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<img alt="" src="/images/feather.gif" /></div>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<div class="up"><a href="../"><img title="&lt;-" alt="&lt;-" src="/images/left.gif" /></a></div>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<div id="path">
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.3</a></div><div id="page-content"><div id="preamble"><h1>How-To / Tutorials</h1>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<div class="toplang">
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<p><span>Available Languages: </span><a href="/en/howto/" title="English">&nbsp;en&nbsp;</a> |
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<a href="/ja/howto/" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<a href="/ko/howto/" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd</div>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd</div>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<div class="section">
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd<h2><a name="howto" id="howto">How-To / Tutorials</a></h2>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dl>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dt>Authentication and Authorization</dt>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dd>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <p>Authentication is any process by which you verify that
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd someone is who they claim they are. Authorization is any
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd process by which someone is allowed to be where they want to
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd go, or to have information that they want to have.</p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <p>See: <a href="auth.html">Authentication, Authorization</a></p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd </dd>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd </dl>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dl>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dt>Access Control</dt>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dd>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <p>Access control refers to the process of restricting, or
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd granting access to a resource based on arbitrary criteria. There
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd are a variety of different ways that this can be
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd accomplished.</p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <p>See: <a href="access.html">Access Control</a></p>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd </dd>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd </dl>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dl>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dt>Dynamic Content with CGI</dt>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <dd>
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd <p>The CGI (Common Gateway Interface) defines a way for a web
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd server to interact with external content-generating programs,
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd which are often referred to as CGI programs or CGI scripts. It
3f8adfdf712dad8059e3f5be6ff4f4a794386ce4nd is the simplest, and most common, way to put dynamic content on
your web site. This document will be an introduction to setting
up CGI on your Apache web server, and getting started writing
CGI programs.</p>
<p>See: <a href="cgi.html">CGI: Dynamic Content</a></p>
</dd>
</dl>
<dl>
<dt><code>.htaccess</code> files</dt>
<dd>
<p><code>.htaccess</code> files provide a way to make configuration
changes on a per-directory basis. A file, containing one or more
configuration directives, is placed in a particular document directory,
and the directives apply to that directory, and all subdirectories thereof.</p>
<p>See: <a href="htaccess.html"><code>.htaccess</code> files</a></p>
</dd>
</dl>
<dl>
<dt>Introduction to Server Side Includes</dt>
<dd>
<p>SSI (Server Side Includes) are directives that are placed in
HTML pages, and evaluated on the server while the pages are
being served. They let you add dynamically generated content to
an existing HTML page, without having to serve the entire page
via a CGI program, or other dynamic technology.</p>
<p>See: <a href="ssi.html">Server Side Includes (SSI)</a></p>
</dd>
</dl>
<dl>
<dt>Per-user web directories</dt>
<dd>
<p>On systems with multiple users, each user can be permitted to have a
web site in their home directory using the <code class="directive"><a href="/mod/mod_userdir.html#userdir">UserDir</a></code> directive. Visitors
to a URL <code>http://example.com/~username/</code> will get content
out of the home directory of the user "<code>username</code>", out of
the subdirectory specified by the <code class="directive"><a href="/mod/mod_userdir.html#userdir">UserDir</a></code> directive.</p>
<p>See: <a href="public_html.html">User web directories (<code>public_html</code>)</a></p>
</dd>
</dl>
</div></div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="/en/howto/" title="English">&nbsp;en&nbsp;</a> |
<a href="/ja/howto/" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
<a href="/ko/howto/" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
</div><div id="footer">
<p class="apache">Copyright 2008 The Apache Software Foundation.<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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