--- title: Forward X11 window over SSH date: 2017-06-16 00:00:00 +09:00 --- ![x11-plot.png](/uploads/x11-plot.png) ## Ubuntu 16.04 Make sure you have installed SSH, X11 and xAuth on a remote server. ``` sudo apt install -y xorg xauth openssh sudo sed -i '/ForwardX11/s/.*/ForwardX11 yes/' /etc/ssh/sshd_config sudo service ssh restart ``` ## macOS Sierra You also need to have X11 on your local machine. ``` brew cask install xquartz # install X11 ssh -X $ xeyes # verify you have X11 ``` You might want to restart macOS if `$DISPLAY` have empty value. # Plot with matplotlib Plot a simple graph remotely on Ubuntu 16.04: ```python import matplotlib.pyplot as plt plt.plot([1, 2, 3]) plt.show() ``` If you can't see any window, add **backend** settings to `~/.config/matplotlib/matplotlibrc`. ```ini backend: TkAgg ``` or just add few lines to change the backend explicitly: ```python import matplotlib matplotlib.use('TkAgg') import matplotlib.pyplot as plt ... ```