protected function validateIpAddress($ip_address)
    {
        if (! filter_var($ip_address, FILTER_VALIDATE_IP)) {
            $this->error("$ip_address is not a valid ip address! Exiting!");
            die();
        }
        if (! $this->checkIp($ip_address, $this->servers)) {
            $this->error("$ip_address doesn't match any of your IP addreses Forge Servers");
            die();
        }
    }