<https://www.unixmen.com/block-access-usb-cddvd-debian-derivatives/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.unixmen.com/block-access-usb-cddvd-debian-derivatives/howtodisable-usb-in-ubuntu-300x225/>