I've solved using this configuration
<subsystem xmlns="urn:jboss:domain:web:1.0" default-virtual-server="default-host">
<connector name="http" protocol="HTTP/1.1" socket-binding="http" scheme="https" proxy-name="MYDNS" proxy-port="443"/>
<connector name="http1" protocol="HTTP/1.1" socket-binding="http1" scheme="http"/>
<virtual-server name="default-host" enable-welcome-root="true">
<alias name="localhost"/>
</virtual-server>
</subsystem>
<subsystem xmlns="urn:jboss:domain:webservices:1.0" xmlns:javaee="http://java.sun.com/xml/ns/javaee" xmlns:jaxwsconfig="urn:jboss:jbossws-jaxws-config:4.0">
<wsdl-host>
MYDNS
</wsdl-host>
<modify-wsdl-address>
true
</modify-wsdl-address>
</subsystem>
....
<socket-binding-group name="standard-sockets" default-interface="public">
<socket-binding name="http" port="8080"/>
<socket-binding name="http1" port="9080"/>
<socket-binding name="jacorb" port="3528"/>
<socket-binding name="jacorb-ssl" port="3529"/>
<socket-binding name="jmx-connector-registry" port="1090" interface="management"/>
<socket-binding name="jmx-connector-server" port="1091" interface="management"/>
<socket-binding name="jndi" port="1099"/>
<socket-binding name="messaging" port="5445"/>
<socket-binding name="messaging-throughput" port="5455"/>
<socket-binding name="osgi-http" port="8090" interface="management"/>
<socket-binding name="remoting" port="4447"/>
<socket-binding name="txn-recovery-environment" port="4712"/>
<socket-binding name="txn-status-manager" port="4713"/>
</socket-binding-group>
the LB forward the request on http://myPrivateHostIp:8080/.....