https://blog.wongcw.com/2018/12/03/xubuntu-%e8%a8%88%e5%8a%83%e5%be%9e19-04-%e7%89%88%e6%9c%ac%e9%96%8b%e5%a7%8b%e5%81%9c%e6%ad%a2%e6%8f%90%e4%be%9b32-%e4%bd%8d%e5%ae%89%e8%a3%9d%e9%8f%a1%e5%83%8f%e2%80%8b%e2%80%8b%e2%80%8b%e2%80%8b/