This is a PHP implementation of the old network utilization bar on kernel.org. It measures outgoing bandwidth on a /proc based operating system, like Linux.
Change configuration information in daemon.php. Then you might want to move daemon.php to a different directory because it must run all the time to poll the network services. Everything else should work fine if you have GD installed with PHP. Invoke daemon.php like this:
php -q daemon.php &
Be sure to run daemon.php as a user that has permission to write to the netload.inc file.