v class="text">

    <p>The <em>Single Sign On Valve</em> is utilized when you wish to give users
    the ability to sign on to any one of the web applications associated with
    your virtual host, and then have their identity recognized by all other
    web applications on the same virtual host.</p>

    <p>See the <a href="host.html#Single_Sign_On">Single Sign On</a> special
    feature on the <strong>Host</strong> element for more information.</p>

  </div></div>


  <div class="subsection"><h4 id="Sing