Ubuntu Server- A brief introduction : Ubuntu Server is based on Debian Linux Operating System for personal computers , tablets and smartphones . Like Ubuntu Desktop Edition , Ubuntu Server uses the same APT ( Advanced Package Tool ) repositories. The Advanced Package Tool, is a free software user interface that works with core libraries to handle the installation and removal of software on the Debian, Slackware and other Linux distributions. The differences between Ubuntu Desktop and Ubuntu Server is the absence of an X Window environment in a default installation of the server edition and some alterations to the installation process. The server edition uses a screen-mode, character-based interface for the installation, instead of a graphical installation process. This enables installation on machines with a serial or "dumb terminal" interface without graphics support. Today I am going to show you how to install Ubuntu Server o...