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

YUM

Yellowdog Updater, Modified, is commonly known as YUM. YUM is an open source command-line method for package management for systems using a Red Hat distribution. As Linux administrators, YUM enables us to perform automatic updates and package and dependency management on RPM-based distributions. YUM is similar in nature to its Debian counterpart, APT. The YUM utility makes use of various software repositories.

A software repo, as it is commonly called, stores a variety of packages. One of the main reasons for using YUM is that it detects whether any dependency files are needed for a particular package. It then prompts the user of the needed files and offers to install them as part of the package installation, which the user should have initiated from the get-go.

An interesting point to note is the fact that YUM works with RPM packages.

To begin with, we can view the available...