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

Chapter 3: Understanding Service, Path, and Socket Units

In this chapter, we'll examine the inner workings of the service, path, and socket unit files. We'll examine the parts that are in each and look at some of the parameters that you can set. Along the way, I'll give you some pointers about how to find information about what the various parameters are doing for you.

In this chapter, we will cover the following topics:

  • Understanding service units
  • Understanding socket units
  • Understanding path units

At some point in your Linux administrator career, you could be tasked with modifying existing units or creating new ones. The knowledge in this chapter can help you with that. So, if you're ready, let's go.