In this tutorial we will help you install the Gnome 3 (Gnome Shell) desktop environment under Arch Linux. The CLI mode is set by default in Arch Linux and to bypass it and use the GUI mode (Gnome3), you need to follow these instructions:
In this tutorial we will see how to switch from CLI (Command-Line Interface) mode to GUI (Graphic User Interface) mode and vice versa under CentOS 6.2 or older. To be able to use the GUI mode on CentOS, we need a desktop environment like Gnome.
In this tutorial we will see how to disable root login over ssh under a system running CentOS 6.2 or Fedora 16. For securities reasons, you are required to not use direct ssh root login and use instead "su" or "sudo" commands to get root privileges.