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

User and Group Management

If you administer Linux servers, the users of such servers can be both your greatest asset and your greatest headache. Throughout the course of your career, you will be responsible for the addition of a large number of new users, the management of their passwords, the deletion of their accounts when they leave the organization, and the provision and revocation of access to resources located across the network. Even on servers where you are the sole user, you will still be responsible for managing user accounts. This is because even system processes run under the guise of a user. If you want to be effective at managing Linux servers, you will also need to know how to manage rights, implement password policies, and limit the number of people who can execute administrative commands on the computer. In this chapter, we’ll go over these topics in detail so that you have a solid understanding of how to manage users and the resources they consume.

In this...