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<title>mod_authn_file - Apache HTTP Server</title>
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<div id="preamble"><h1>Apache Module mod_authn_file</h1>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>User authentication using text files</td></tr>
<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>authn_file_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_authn_file.c</td></tr>
<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.1 and later</td></tr></table>
<h3>Summary</h3>

    <p>This module provides authentication front-ends such as
    <code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code> and <code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code>
    to authenticate users by looking up users in plain text password files.
    Similar functionality is provided by <code class="module"><a href="../mod/mod_authn_dbm.html">mod_authn_dbm</a></code>.</p>

    <p>When using <code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code> or
    <code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code>, this module is invoked via the
    <code class="directive"><a href="../mod/mod_auth_basic.html#authbasicprovider">AuthBasicProvider</a></code> or
    <code class="directive"><a href="../mod/mod_auth_digest.html#authdigestprovider">AuthDigestProvider</a></code>
    with the <code>file</code> value.</p>
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<div id="quickview"><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#authuserfile">AuthUserFile</a></li>
</ul>
<h3>See also</h3>
<ul class="seealso">
<li>
  <code class="directive"><a href="../mod/mod_auth_basic.html#authbasicprovider">AuthBasicProvider</a></code>
</li>
<li>
  <code class="directive"><a href="../mod/mod_auth_digest.html#authdigestprovider">AuthDigestProvider</a></code>
</li>
<li><code class="program"><a href="../programs/htpasswd.html">htpasswd</a></code></li>
<li><code class="program"><a href="../programs/htdigest.html">htdigest</a></code></li>
</ul></div>

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<div class="directive-section"><h2><a name="AuthUserFile" id="AuthUserFile">AuthUserFile</a> <a name="authuserfile" id="authuserfile">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets the name of a text file containing the list of users and
passwords for authentication</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthUserFile <var>file-path</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>AuthConfig</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_authn_file</td></tr>
</table>
    <p>The <code class="directive">AuthUserFile</code> directive sets the name
    of a textual file containing the list of users and passwords for
    user authentication. <var>File-path</var> is the path to the user
    file. If it is not absolute, it is treated as relative to the
    <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code>.</p>

    <p>Each line of the user file contains a username followed by
    a colon, followed by the encrypted password. If the same user
    ID is defined multiple times, <code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code> will
    use the first occurrence to verify the password.</p>

    <p>The utility <code class="program"><a href="../programs/htpasswd.html">htpasswd</a></code>
    which is installed as part of the binary distribution, or which
    can be found in <code>src/support</code>, is used to maintain
    the password file for <em>HTTP Basic Authentication</em>. See the
    <a href="../programs/htpasswd.html">man page</a> for more details.
    In short:</p>

    <p>Create a password file <code>Filename</code> with
    <code>username</code> as the initial ID. It will prompt for
    the password:</p>

    <div class="example"><p><code>
      htpasswd -c Filename username
    </code></p></div>

    <p>Add or modify <code>username2</code> in the password file
    <code>Filename</code>:</p>

    <div class="example"><p><code>
      htpasswd Filename username2
    </code></p></div>

    <p>Note that searching large text files is <em>very</em>
    inefficient; <code class="directive"><a href="../mod/mod_authn_dbm.html#authdbmuserfile">AuthDBMUserFile</a></code> should be used
    instead.</p>

    <p>If you are using <em>HTTP Digest Authentication</em>, the <code class="program"><a href="../programs/htpasswd.html">htpasswd</a></code> tool is not sufficient.
    You have to use <code class="program"><a href="../programs/htdigest.html">htdigest</a></code>
    instead. Note that you cannot mix user data for Digest Authentication
    and Basic Authentication within the same file.</p>

    <div class="warning"><h3>Security</h3>
      <p>Make sure that the <code class="directive">AuthUserFile</code> is
      stored outside the document tree of the web-server. Do
      <strong>not</strong> put it in the directory that it protects.
      Otherwise, clients may be able to download the
      <code class="directive">AuthUserFile</code>.</p>
    </div>

</div>
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