Book Image

Linux Service Management Made Easy with systemd

4 (1)
Book Image

Linux Service Management Made Easy with systemd

4 (1)

Overview of this book

Linux Service Management Made Easy with systemd will provide you with an in-depth understanding of systemd, so that you can set up your servers securely and efficiently.This is a comprehensive guide for Linux administrators that will help you get the best of systemd, starting with an explanation of the fundamentals of systemd management.You’ll also learn how to edit and create your own systemd units, which will be particularly helpful if you need to create custom services or timers and add features or security to an existing service. Next, you'll find out how to analyze and fix boot-up challenges and set system parameters. An overview of cgroups that'll help you control system resource usage for both processes and users will also be covered, alongside a practical demonstration on how cgroups are structured, spotting the differences between cgroups Version 1 and 2, and how to set resource limits on both. Finally, you'll learn about the systemd way of performing time-keeping, networking, logging, and login management. You'll discover how to configure servers accurately and gather system information to analyze system security and performance. By the end of this Linux book, you’ll be able to efficiently manage all aspects of a server running the systemd init system.
Table of Contents (23 chapters)
1
Section 1: Using systemd
12
Section 2: Understanding cgroups
16
Section 3: Logging, Timekeeping, Networking, and Booting

To get the most out of this book

To perform the demos in this book, you should have a good grasp of basic Linux command-line usage and should know how to create VirtualBox virtual machines. You can download VirtualBox from https://www.virtualbox.org/ and find the download sites for the various Linux distros at https://distrowatch.com/. When you create the virtual machines, allocate enough memory for the machines to run efficiently, and enough drive space to hold everything you need for the demos. (I recommend at least 2 GB of memory for text-mode virtual machines, and at least 4 GB for graphical-mode virtual machines, unless I specify otherwise for specific demos. Set the virtual drive to about 20 GB.)

When you install an Ubuntu distro, you'll automatically be added to the sudo group, which gives you full sudo privileges. When you install AlmaLinux, you'll be given the chance to create a password for the root user. My recommendation is to not do that and instead just check the Make this user administrator box on the Create User screen of the installer.