Book Image

CompTIA Linux+ Certification Guide

By : Philip Inshanally
Book Image

CompTIA Linux+ Certification Guide

By: Philip Inshanally

Overview of this book

The Linux+ certification provides a broad awareness of Linux operating systems, while giving professionals an upper hand in the IT industry. With this certification, you’ll be equipped with the all-important knowledge of installation, operation, administration, and troubleshooting services. This CompTIA Linux+ Certification Guide will give you an overview of the system architecture. You’ll understand how to install and uninstall Linux distributions, followed by working with various package managers. You’ll then move on to manipulating files and processes at the command-line interface (CLI) and creating, monitoring, killing, restarting, and modifying processes. As you progress, you’ll be equipped to work with display managers and learn how you can create, modify, and remove user accounts and groups, as well as understand how to automate tasks. The last set of chapters will help you configure dates and set up local and remote system logging. In addition to this, you’ll explore different internet protocols, and delve into network configuration, security administration, Shell scripting, and SQL management. By the end of this book, you’ll not only have got to grips with all the modules you need to study for the LX0-103 and LX0-104 certification exams, but you’ll also be able to test your understanding with practice questions and mock exams.
Table of Contents (23 chapters)
19
Mock Exam - 1
20
Mock Exam - 2

Understanding the use of the LiveCD

When we boot up our system, we have a number of options to choose when installing a Linux distribution. Instead of us wiping our hard drive(s), we can install Linux using what is known as a LiveCD. Keep in mind that the experience may seem as though we are installing a Linux distribution, but in fact, we are actually temporarily loading up files into RAM, and the LiveCD is acting as though it is installed on an actual hard drive. That is the main concept of a LiveCD.

We will use the Ubuntu distribution for this demo. First, we set our system to boot from CD/DVD. Then we power on our system:

Here, we have a number of options available for us to choose from. The first option will load the Linux distribution into memory. The other options, such as Install Ubuntu, would be used for a normal installation. We can also check the disc for defects and...