This post shows you how to SSH into a remote machine, start a VNC server and connect to the VNC server from Ubuntu 16.04.5.
Note: You should replace firstname.lastname@example.org with your username on the remote host and the name of the remote host
Step 1: Open a terminal window on your local machine
Step 2: Open an SSH connection
From your local machine type:
Step 3: After logging in, start a VNC server:
Type in the window:
vncserver -geometry 1920x1080
You should see something like:
New 'machine.domain.com:6 (user)' desktop is machine.domain.com:6
Step 4: Note down the number you see after machine.domain.com: in this case its 6 but it may be something else.
Step 5: Open another terminal window on your local machine
Step 6: Using the number noted above, in the window type:
ssh email@example.com -L 5901:localhost:5906
This ^^^ command sets up a "tunnel" that routes packets from port 5901 on your local machine, localhost, to port 5906 on the remote host, machine.domain.com, through SSH port 22.
Step 7: On your local host
1: Click the Ubuntu launcher
2: Type vnc
3: Click on the Remmina Remote Desktop Client
Step 8: After Remmina Remote Desktop Client launches
1: Select VNC
2: Type :1
3: Click Connect!