function fix_network_forwarding()
{
	$list = file("/etc/sysctl.conf");

	foreach($list as $__l) {
		if (strstr($__l, "net.ipv4.ip_forward") !== false) {
			$newlist[] = "net.ipv4.ip_forward = 1\n";
		} else {
			$newlist[] = $__l;
		}
	}

	our_file_put_contents("/etc/sysctl.conf", implode("", $newlist));
	shell_exec("sysctl -p");
}