Book Image

Linux for System Administrators

By : Viorel Rudareanu, Daniil Baturin
Book Image

Linux for System Administrators

By: Viorel Rudareanu, Daniil Baturin

Overview of this book

Linux system administration is an essential aspect of maintaining and managing Linux servers within an organization. The role of a Linux system administrator is pivotal in ensuring the smooth functioning and security of these servers, making it a critical job function for any company that relies on Linux infrastructure. This book is a comprehensive guide designed to help you build a solid foundation in Linux system administration. It takes you from the fundamentals of Linux to more advanced topics, encompassing key areas such as Linux system installation, managing user accounts and filesystems, networking fundamentals, and Linux security techniques. Additionally, the book delves into the automation of applications and infrastructure using Chef, enabling you to streamline and optimize your operations. For both newcomers getting started with Linux and professionals looking to enhance their skills, this book is an invaluable hands-on guide with a structured approach and concise explanations that make it an effective resource for quickly acquiring and reinforcing Linux system administration skills. With the help of this Linux book, you’ll be able to navigate the world of Linux administration confidently to meet the demands of your role.
Table of Contents (21 chapters)
Part 1: Linux Basics
Part 2: Configuring and Modifying Linux Systems
Part 3: Linux as a Part of a Larger System

Getting started with LVM

Linux’s server installer allows you to select LVM as a volume manager for a fresh server setup. However, LVM should be utilized extensively for storage volumes, especially those that will house user and application data. If you want the root filesystem on your Ubuntu server to take advantage of LVM’s functionality, LVM is a good option. We’ll need to have a firm grasp on volume groups, physical volumes, and logical volumes before we can begin using LVM. The logical and physical volumes you intend to use with an LVM solution are organized into volume groups. In a nutshell, a volume group is the umbrella term for your whole LVM infrastructure. You can think of it as a container that can hold disks. A vg-accounting volume group is an illustration of this type of group. The accounting department would use this volume group to store their records. It will include both the actual disk space and the virtual disk space that these users will access...