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<div id="preamble"><h1>Apache Module mod_auth_basic</h1>
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<p><span>Available Languages: </span><a href="../en/mod/mod_auth_basic.html" title="English">&nbsp;en&nbsp;</a> |
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Basic authentication</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>auth_basic_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_auth_basic.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 allows the use of HTTP Basic Authentication to
    restrict access by looking up users in the given providers.
    HTTP Digest Authentication is provided by
    <code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code>.  This module should
    usually be combined with at least one authentication module
    such as <code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code> and one authorization
    module such as <code class="module"><a href="../mod/mod_authz_user.html">mod_authz_user</a></code>.</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="#authbasicauthoritative">AuthBasicAuthoritative</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#authbasicprovider">AuthBasicProvider</a></li>
</ul>
<h3>See also</h3>
<ul class="seealso">
<li><code class="directive"><a href="../mod/core.html#authname">AuthName</a></code></li>
<li><code class="directive"><a href="../mod/core.html#authtype">AuthType</a></code></li>
<li><code class="directive"><a href="../mod/core.html#require">Require</a></code></li>
<li><code class="directive"><a href="../mod/core.html#satisfy">Satisfy</a></code></li>
<li><a href="../howto/auth.html">Authentication howto</a></li>
</ul><ul class="seealso"><li><a href="#comments_section">Comments</a></li></ul></div>

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<div class="directive-section"><h2><a name="AuthBasicAuthoritative" id="AuthBasicAuthoritative">AuthBasicAuthoritative</a> <a name="authbasicauthoritative" id="authbasicauthoritative">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets whether authorization and authentication are passed to
lower level modules</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthBasicAuthoritative On|Off</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthBasicAuthoritative On</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_auth_basic</td></tr>
</table>
    <p>Normally, each authorization module listed in <code class="directive"><a href="#authbasicprovider">AuthBasicProvider</a></code> will attempt
    to verify the user, and if the user is not found in any provider,
    access will be denied. Setting the
    <code class="directive">AuthBasicAuthoritative</code> directive explicitly
    to <code>Off</code> allows for both authentication and
    authorization to be passed on to other non-provider-based modules
    if there is <strong>no userID</strong> or <strong>rule</strong>
    matching the supplied userID.  This should only be necessary when
    combining <code class="module"><a href="../mod/mod_auth_basic.html">mod_auth_basic</a></code> with third-party modules
    that are not configured with the <code class="directive"><a href="#authbasicprovider">AuthBasicProvider</a></code>
    directive.  When using such modules, the order of processing
    is determined in the modules' source code and is not configurable.</p>

</div>
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<div class="directive-section"><h2><a name="AuthBasicProvider" id="AuthBasicProvider">AuthBasicProvider</a> <a name="authbasicprovider" id="authbasicprovider">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sets the authentication provider(s) for this location</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthBasicProvider <var>provider-name</var>
[<var>provider-name</var>] ...</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthBasicProvider file</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_auth_basic</td></tr>
</table>
    <p>The <code class="directive">AuthBasicProvider</code> directive sets 
    which provider is used to authenticate the users for this location.
    The default <code>file</code> provider is implemented
    by the <code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code> module.  Make sure
    that the chosen provider module is present in the server.</p>

    <div class="example"><h3>Example</h3><p><code>
      &lt;Location /secure&gt;<br />
      <span class="indent">
        AuthType basic<br />
        AuthName "private area"<br />
        AuthBasicProvider  dbm<br />
        AuthDBMType        SDBM<br />
        AuthDBMUserFile    /www/etc/dbmpasswd<br />
        Require            valid-user<br />
      </span>
      &lt;/Location&gt;
    </code></p></div>

    <p> Providers are queried in order until a provider finds a match
    for the requested username, at which point this sole provider will 
    attempt to check the password.  A failure to verify the password does
    not result in control being passed on to subsequent providers.</p>

    <p>Providers are implemented by <code class="module"><a href="../mod/mod_authn_dbm.html">mod_authn_dbm</a></code>,
    <code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code>, <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>,
    and <code class="module"><a href="../mod/mod_authnz_ldap.html">mod_authnz_ldap</a></code>.</p>

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