Fix a mixed-up module reference and document (carefully)

    <p>This directive selects which authenticated users can access a

    resource.  The restrictions are processed by authorization

    modules.  Some of the allowed syntaxes provided by

    <module>mod_authz_owner</module> and

    <module>mod_authz_user</module> and

    <module>mod_authz_groupfile</module> are:</p>

    <dl>

    place the <directive>Require</directive> statement into a

    <directive module="core" type="section">Limit</directive>

    section.</p>

    <p>If <directive>Require</directive> is used together with 

    the <directive module="mod_authz_host">Allow</directive> or

    <directive module="mod_authz_host">Deny</directive> directives,

    then the interaction of these restrictions is controlled by

    the <directive module="core">Satisfy</directive> directive.</p>

    <note><title>Removing controls in subdirectories</title>

    <p>The following example shows how to use the <directive

    module="core">Satisfy</directive> directive to disable access

    controls in a subdirectory of a protected directory.  This

    technique should be used with caution, because it will also

    disable any access controls imposed by

    <module>mod_authz_host</module>.</p>

    <example>

      &lt;Directory /path/to/protected/&gt;<br />

        <indent>

        Require user david<br />

        </indent>

      &lt;/Directory&gt;<br />

      &lt;Directory /path/to/protected/unprotected&gt;<br />

        <indent>

        # All access controls and authentication are disabled<br />

        # in this directory<br />

        Satisfy Any<br />

        Allow from all<br />

        </indent>

      &lt;/Directory&gt;<br />

    </example>

    </note>

</usage>

<seealso><a href="../howto/auth.html">Authentication, Authorization,