Before you proceed, first consider one of these alternatives to manually installing a GUI: Launch from an Amazon Linux 2 AMI that comes with MATE pre-installed Start using Amazon WorkSpaces, a fully managed, persistent desktop virtualization service. Start using NICE DCV, a remote display protocol that delivers remote desktops and application streaming securely from any cloud or data center to any device. If you want to proceed with manual GUI installation, then do the following: Install the MATE desktop environment, a lightweight GUI based on GNOME 2 available as an extra for Amazon Linux 2. For more information about MATE Install a virtual network computing (VNC) service, such as TigerVNC. For more information about TigerVNC, see the tigervnc.org website. Connect to the GUI using the VNC (Optional) Turn off password authentication for VNC. (Optional) Install a web browser, such as Chromium or Firefox. Connect your instance as EC2-user...