- First
Install all the following. On Window, install Xming. On Ubuntu bash, use sudo apt install to install ssh xauth xorg.
sudo apt install ssh xauth xorg- Second
Go to the folder contains ssh_config file, mine is /etc/ssh.
- Third
Edit ssh_config as administrator(USE sudo). Inside ssh_config, remove the hash # in the lines ForwardAgent, ForwardX11, ForwardX11Trusted, and set the corresponding arguments to yes.
# /etc/ssh/ssh_config
Host *
ForwardAgent yes
ForwardX11 yes
ForwardX11Trusted yes- Forth
In ssh_config file, remove the front hash # before Port 22 and Protocol 2, and also append a new line at the end of the file to state the xauth file location, XauthLocaion /usr/bin/xauth, remember write your own path of xauth file.
# /etc/ssh/ssh_config
# IdentifyFile ...
Port 22
Protocol 2
# Cipher 3des
# ...
# ...
...
...
GSSAPIDelegateCredentials no
XauthLocaion /usr/bin/xauth- Fifth
Now since we are done editing ssh_config file, save it when we leave the editor. Now go to folder ~ or $HOME, append export DISPLAY=localhost:0 to your .bashrc file and save it.
# ~/.bashrc
...
...
export DISPLAY=localhost:0- Last
We are almost done. Restart your bash shell, open your Xming program and use ssh -X yourusername@yourhost. Then enjoy the GUI environment.
ssh -X yourusername@yourhost
I was trying to use cv2.imshow after these steps to test the GUI, but it showed error like 'connect localhost port 6000: Connection refused Unable to init server: Could not connect: Connection'. I searched a solution for this: add 'xhost +' in the end of ~/.bashrc. But finally it showed another 'xhost: unable to open display "localhost:0"'. Can I ask where may be the problem?