To "download" Linux X11 effectively, you don't usually download a standalone installer file like you would on Windows. Instead, you install it through your Linux distribution's . X11 (or X.Org) is the legacy display server protocol that manages how windows are drawn and how your keyboard/mouse interact with them. Quick Installation Guide by Distribution
If you are using a headless server or a minimal installation, use these commands to "download" and install the X11 server: [Solved] x11 and desktop environment install download linux x11
