<codeclass="module"><ahref="../mod/mod_auth_basic.html">mod_auth_basic</a></code> and <codeclass="module"><ahref="../mod/mod_authz_host.html">mod_authz_host</a></code> which
contain some more information about how this all works.
<codeclass="module"><ahref="../mod/mod_authn_alias.html">mod_authn_alias</a></code> can also help in simplifying certain
authentication configurations.</p>
<p>See the <ahref="auth.html">Authentication and Authorization</a>
<p>The <ahref="../expr.html">expression engine</a> gives you a
great deal of power to do a variety of things based on arbitrary
server variables, and you should consult that document for more
detail.</p>
<p>Also, you should read the <codeclass="module"><ahref="../mod/mod_authz_core.html">mod_authz_core</a></code>
documentation for examples of combining multiple access requirements
and specifying how they interact.</p>
<p>See also the <ahref="auth.html">Authentication and Authorization</a>