| 13 | |
| 14 | ==== X11 forwarding is not working |
| 15 | "X11 forwarding" is the process of using a graphical user interface (GUI) over SSH. |
| 16 | |
| 17 | If you receive errors while trying to use a GUI over SSH relating to X11 forwarding, first make sure that you use the {{{-X}}} flag in the {{{ssh}}} command when connecting to the console. On macOS, you may need to specify {{{-Y}}} instead of {{{-X}}}. Please note, if you are trying to use a GUI on a node accessed via ssh from the console, then you must specify the {{{-X}}} flag in this ssh command from the console as well. |
| 18 | |
| 19 | If X11 is still not working right, make sure that X11 is actually installed on your local machine. macOS and Windows will not have X11 support by default and must be installed. XQuartz for macOS and Xming for Windows are commonly used installations, and usually require a reboot before working correctly. |