Prereq is a ”vanilla” Ubuntu 16.04 LTS server

Update Ubuntu

$sudo apt-get update
$sudo apt-get upgrade
($sudo apt-get dist-upgrade)
$sudo apt-get autoremove

Install ntpd and unzip

$ sudo apt-get install ntp unzip

Install xinit

$ sudo apt-get install xinit
($ sudo apt-get install x11-apps)

Install Minimal Xfce Desktop

$ sudo apt-get install --no-install-recommends xubuntu-desktop

Tribute to Dan Nanni http://ask.xmodulo.com/install-minimal-ubuntu-desktop.html for the info on How to install minimal Ubuntu desktop

Install xRDP

$ sudo apt-get install xrdp

Change keyboard settings

$ sudo dpkg-reconfigure keyboard-configuration

Change time zone settings

$ sudo dpkg-reconfigure tzdata