If you want to redirect the default home page on Jboss (which has links to the Jboss site and also the JMX Console), you can do it by editing the index.html file in
$JBOSS_HOME/server/$INSTANCE/deploy/jboss-web.deployer/ROOT.war
.
The $INSTANCE is the mode you are running Jboss in (default, all, messaging etc).