Book Image

Ubuntu Server Essentials

By : Abdelmonam Kouka
Book Image

Ubuntu Server Essentials

By: Abdelmonam Kouka

Overview of this book

Ubuntu is a Debian-based Linux operating system built on top of the Debian architecture. It is used to make operating systems for multiple platforms, including phones, desktops, TVs and mobiles. It has made some serious progress in the realms of efficiency and user friendliness. With evolving technology trends, demands on software have changed, with more and more skilled users. Over the past few years, services such as Facebook, Twitter, and push notifications on smartphones mean that users are used to being up to date with everything that happens all the time. With SignalR, the applications stay connected and will generate notifications when something happens either from the system or by other users. This provides new opportunities for the system administrators, to enter this new and exciting world of real-time application development. This is a concise and a cost-friendly guide, packed with up-to-date essentials on Ubuntu Server fundamentals. It will guide you through deploying and configuring Ubuntu servers in your office environments. You’ll start by installing Ubuntu Server, then move to the most useful aspect —the command-line interface inside it. You’ll extend your knowledge by learning how to administrate and configure Ubuntu Server. You will also see how to deploy services on Ubuntu Server and find out how to secure it. You’ll get to grips with the virtualization and cloud computing facilities provided by Ubuntu, and finally, you’ll gain some very useful tips.
Table of Contents (13 chapters)

The network configuration for an Ubuntu Server

To cover all the aspects of network configuration for a Linux system administrator, we need huge books. So, in this little section, we will cover only the essential topics that every Ubuntu Server administrator will need to set up and change the network settings.

The configuration files

In this section, we will have a look at the core files for the network settings for the Ubuntu Server.


Note that after modifying any of these files, you should restart the network process by typing in the following command:

sudo /etc/init.d/networking restart

Unlike Red Hat manners, Ubuntu and all the Debian-based distributions use a unique file to configure all the network interfaces; this file is named /etc/network/interfaces. In general, for Ubuntu servers, you will find the loopback and Ethernet interfaces. For loopback interfaces (, its configuration is standard and doesn't need any modification from your side. For Ethernet interfaces, you will...