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

Overview of basic settings

Linux has various basic settings that you can configure to customize the behavior of your system. These settings are typically found in configuration files, and they can affect various aspects of the operating system:

  • System time configuration: The system time in Linux is critical for a variety of tasks, including scheduling tasks, logging, and time-sensitive applications. The system time can be configured using the timedatectl command in most modern Linux distributions. This command allows users to set the system’s time zone, as well as the date and time.
  • Hostname configuration: The hostname is the name given to a computer or device on a network. In Linux, the hostname can be configured using the hostnamectl command. This command allows users to set the hostname, as well as the static IP address and domain name.
  • User and group configuration: In Linux, users and groups are used to control access to the system and its resources. The...