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Hardening the Linux desktop

A selection of easy-to-use tools for keeping your systems secure

developerWorks

Level: Introductory

Jeffrey Orloff (jeff.orloff@gmail.com), Director of IT/Security, SafeWave, LLC

25 Nov 2008

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Although GNU/Linux® has the reputation of being a much more secure operating system than Microsoft® Windows®, you still need to secure the Linux desktop. This tutorial takes you through the steps of installing and configuring antivirus software, creating a backup-restore plan, and making practical use of a firewall. When you finish, you'll have the knowledge and tools you need to harden your Linux desktop against most attacks and prevent illegitimate access to your computer.

In this tutorial

  • Protect your computer against malware attacks
  • Configure a firewall to keep attackers out
  • Back up important files and recover files after a successful backup
  • Install updates to your operating system and other software
  • Password-protect the bootloader


Objectives

After completing this tutorial, you will be able to harden your GNU/Linux desktop and prevent attacks against your computer and its data. You will be able to install and configure software to help protect your desktop against malware that can give an attacker access to your computer. You will also be able to use a firewall to protect against inbound and outbound traffic, back up and restore your data, and apply other tricks that further harden your system.

Prerequisites

This tutorial is written for beginning GNU/Linux users. It assumes that you have a basic understanding of the GNU/Linux operating system and have experience downloading and installing software.


System requirements

To use the examples in this tutorial, you need the GNU/Linux operating system installed on a computer or as a virtual environment with root access. You also need an active Internet connection with the ability to download software.

The examples use Ubuntu, so it is recommended that you use a Debian fork of GNU/Linux. Although the examples will work on a virtual machine running GNU/Linux, you should not use a Live CD.



Duration

More than 2 hours


Formats

html, pdf


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