To install the X Window System XQuartz on macOS for ssh X11 forwarding, follow these steps:
- Download the XQuartz installer from the official website: https://www.xquartz.org/
- Install XQuartz by double-clicking on the downloaded installer package and following the instructions.
- Once XQuartz is installed, log out and log back in to your macOS account to activate X11 forwarding.
- To enable X11 forwarding over ssh, make sure the “ForwardX11” option is set to “yes” in your ssh configuration file, typically located at ~/.ssh/config. If the option is not set, add the following line to the file: “ForwardX11 yes”
- Now, when you connect to a remote server via ssh, X11 forwarding should be enabled, and you should be able to run graphical applications on the remote server and display them on your local XQuartz client.