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)

Backuping and restoring

The tools and procedures that we saw in this chapter until now allow us to raise the server security level and enhance the ability to block attacks, but what if we are being attacked? In some cases, we can investigate and clean up the system, but in most cases, neither the time nor the means allow us to do that, and the best solution is to restore a healthy backed up image of the system. The backup and restore procedures solve not only problems related to attacks, but also problems related to data loss that are caused by human mistakes or physical accidents such as a server room fire.

In the following section, you will discover how to perform a backup/restore of Ubuntu Server in more than one way with more than one tool.

The principles of backup

There are a number of principles that should guide you when you choose your backup strategy. Most of these are common sense but bear repeating:

  • Back up your data to a separate system

  • Test your backups

  • RAID is not a substitute for...