anchor.diff:        <Host name="localhost"  appBase="webapps"
               unpackWARs="true" autoDeploy="true"
               xmlValidation="false" xmlNamespaceAware="false">
  -
  -        <!-- SingleSignOn valve, share authentication between web applications
  -             Documentation at: /docs/config/valve.html -->
  -        <!--
  -        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
  -        -->
  -
  -        <!-- Access log processes all example.
  -             Documentation at: /docs/config/valve.html -->
  -        <!--
  -        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
  -               prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>
  -        -->
  -
         </Host>
       </Engine>
     </Service>
  
positive.code:          on to the appropriate Host (virtual host).
           Documentation at /docs/config/engine.html -->
  
      <!-- You should set jvmRoute to support load-balancing via AJP ie :
      <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
      -->
      <Engine name="Catalina" defaultHost="localhost">
  
        <!--For clustering, please take a look at documentation at:
            /docs/cluster-howto.html  (simple how to)
            /docs/config/cluster.html (reference documentation) -->
        <!--
        <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
        -->
  
        <!-- The request dumper valve dumps useful debugging information about
             the request and response data received and sent by Tomcat.
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
        -->
  
        <!-- This Realm uses the UserDatabase configured in the global JNDI
             resources under the key "UserDatabase".  Any edits
  
negative.code:     <Connector port="<%= http_port %>" protocol="HTTP/1.1"
                 connectionTimeout="20000"
                 redirectPort="<%= @redirect_port %>" />
  
      <!-- Define an AJP 1.3 Connector on port <%= ajp_port %> -->
      <Connector port="<%= ajp_port %>" protocol="AJP/1.3" redirectPort="<%= @redirect_port %>" />
  