Install Xrdp on Ubuntu: compatible with Windows Remote Desktop

sudo apt install xrdp openbox

echo "exec openbox-session" >> ~/.xsession

sudo service xrdp restart

Notes

• if you use Openbox, you’ll just see a grey screen upon typing password at Xrdp login. Right-click mouse to open menu.

• If you just get a gray screen, try editing /etc/xrdp/startwm.sh to contain

    #!/bin/sh
  
    if [ -r /etc/default/locale ]; then
    . /etc/default/locale
    export LANG LANGUAGE
    fi
  
    exec openbox