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

Summary

In this chapter, we looked at the history of the cgroups technology, what cgroups are, and why we need them. We then looked at the structure of cgroups and the cgroup filesystem.

A major challenge that comes with learning about cgroup technology is that there isn't much available documentation about it. I mean, you'll see a lot of blog posts and YouTube videos about it, but much of it either isn't very comprehensive or is woefully out of date. Hopefully, I've been able to give you a better understanding of cgroup technology and how it works together with systemd.

In the next chapter, we'll look at controlling resource usage with cgroups Version 1. I'll see you there.