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<title>htdigest - manage user files for digest authentication - Apache HTTP Server Version 2.4</title>
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    <p><code>htdigest</code> is used to create and update the flat-files used
    to store usernames, realm and password for digest authentication of HTTP
    users. Resources available from the Apache HTTP server can be restricted
    to just the users listed in the files created by <code>htdigest</code>.</p>

    <p>This manual page only lists the command line arguments. For details of
    the directives necessary to configure digest authentication in
    <code class="program"><a href="../programs/httpd.html">httpd</a></code> see the Apache manual, which is part
    of the Apache distribution or can be found at
    <a href="http://httpd.apache.org/">http://httpd.apache.org/</a>.</p>
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<li><img alt="" src="../images/down.gif" /> <a href="#options">Options</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#security">Security Considerations</a></li>
</ul><h3>See also</h3><ul class="seealso"><li><code class="program"><a href="../programs/httpd.html">httpd</a></code></li><li><code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code></li><li><a href="#comments_section">Comments</a></li></ul></div>
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<h2><a name="synopsis" id="synopsis">Synopsis</a></h2>
    <p><code><strong>htdigest</strong> [ -<strong>c</strong> ]
    <var>passwdfile</var> <var>realm</var> <var>username</var></code></p>
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<h2><a name="options" id="options">Options</a></h2>
    <dl>
    <dt><code>-c</code></dt>
    <dd>Create the <var>passwdfile</var>. If <var>passwdfile</var> already
    exists, it is deleted first.</dd>

    <dt><code><var>passwdfile</var></code></dt>
    <dd>Name of the file to contain the username, realm and password. If
    <code>-c</code> is given, this file is created if it does not already
    exist, or deleted and recreated if it does exist.</dd>

    <dt><code><var>realm</var></code></dt>
    <dd>The realm name to which the user name belongs. See 
    <a href="http://tools.ietf.org/html/rfc2617#section-3.2.1">
    http://tools.ietf.org/html/rfc2617#section-3.2.1</a> for more details.
    </dd>

    <dt><code><var>username</var></code></dt>
    <dd>The user name to create or update in <var>passwdfile</var>. If
    <var>username</var> does not exist is this file, an entry is added. If it
    does exist, the password is changed.</dd>
    </dl>
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<h2><a name="security" id="security">Security Considerations</a></h2>
    <p>This program is not safe as a setuid executable. Do <em>not</em> make it
    setuid.</p>
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</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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