Book Image

Linux Service Management Made Easy with systemd

4.5 (2)
Book Image

Linux Service Management Made Easy with systemd

4.5 (2)

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

Technical requirements

Although either of your virtual machines will work equally well for this, all you need is a text-mode virtual machine, so there's no need to fire up the Alma desktop virtual machine if you don't want to. Toward the end of the chapter, we'll be working with some shell scripts. If you don't want to type them in yourself, simply download them from our Git repository.

Check out the following link to see the Code in Action video: https://bit.ly/3G6nbkD

Note

Throughout this book, I've been using AlmaLinux 8 as a replacement for the soon-to-be discontinued CentOS 8. (Of course, depending upon when you're reading this, CentOS 8 may have already been discontinued.)

A few days before I started writing this chapter, the stable release of Rocky Linux 8 finally became available. Using it is the same as using AlmaLinux, or any other RHEL 8 clone for that matter. However, if security is your thing, Rocky does have one huge advantage...