# Replace localhost with address of your desired server
ssh -X localhost -- x11docker x11docker/lxde lxterminal

ssh -X localhost -- x11docker --desktop x11docker/lxde

#! /bin/bash
# Run invisible Xvfb X server with display number :30.
# Catches X environment with 'read < <(...)' construct.
# Docker container runs on invisible Xvfb display.
# (for X server options other than --xvfb or --xdummy also add options --showenv and --xtest).
read Xenv < <(x11docker --xvfb --printenv --display=30 x11docker/lxde pcmanfm)
# Output of new X environment, just for info
# (You can drop `--display=30` in command above if you provide DISPLAY
# from this output to following xpra commands instead of :30)
echo $Xenv
# Start xpra server with new environment variables.
# (Replace "start" with "start-desktop" to forward a desktop environment)
env $Xenv xpra start :30 --use-display --start-via-proxy=no --daemon=no

# Attach xpra client over SSH to xpra server.
# Replace SERVERIP with IP or host name of ssh server.
# You might need to specify a user name in the form USER@SERVERIP
xpra attach ssh://SERVERIP/30

xpra detach ssh://SERVERIP/30

xpra stop ssh://SERVERIP/30

#! /bin/bash
HOSTNAME=localhost                         # Change to desired server address
IMAGECOMMAND="x11docker/lxde lxterminal"   # Change to desired image name and command
# Runs x11docker on remote server. Reads new X environment variables from its output.
# (for X server options other than --xvfb or --xdummy add options --showenv --xtest).
read Xenv < <(ssh -f $HOSTNAME -- x11docker --xvfb --printenv $IMAGECOMMAND)
# extract DISPLAY from new X environment
Newdisplay=$(sh -c "export $Xenv ; echo \$DISPLAY")
# start remote xpra server
# (replace "xpra start" with "xpra start-desktop" for desktop environments)
ssh $HOSTNAME -- env $Xenv xpra start $Newdisplay --use-display --start-via-proxy=no
# start local xpra client
xpra attach ssh://$HOSTNAME/$Newdisplay