sudo apt-get install lxde
sudo apt-get install task-lxde-desktop

ajouter au source list

#vi /etc/apt/source.list
# X2Go Repository (release builds)
deb [trusted=yes] http://packages.x2go.org/debian stretch extras main

sudo apt-get install x2goserver x2goserver-xsession

systemctl enable x2goserver.service