Moodle: Network setup using dynamic or multiple IP in wwwroot

If you have multiple NIC to be used for local and public access. Sometimes you are facing this kind of problem in Moodle. All you have to do is change a PHP variable in config.php inside moodle web directory.

$CFG->wwwroot

value with :

$CFG->wwwroot = 'http://'.$_SERVER["HTTP_HOST"];