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)
Section 1: Using systemd
Section 2: Understanding cgroups
Section 3: Logging, Timekeeping, Networking, and Booting


  1. Your computer has six CPU cores. What would Vicky's CPUQuota setting be if you want to limit her to only 16.66% for each CPU core?

    A. 16.66%

    B. 33.00%

    C. 100%

    D. 200%

  2. According to the systemd.resource-control man page, which of the following directives represents the most modern way of limiting someone's memory usage?

    A. MemoryLimit

    B. MemoryMax

    C. LimitMemory

    D. MaxMemory

  3. What does the --runtime option for systemctl set-property do?

    A. It makes the new setting permanent.

    B. Nothing, because it's already the default behavior.

    C. It makes the new setting temporary.

    D. It makes the command run faster.

  4. Which of the following is true about CPU load averages?

    A. Machines with more CPU cores can handle higher CPU load averages.

    B. CPU load averages have nothing to do with how many CPU cores a machine has.

    C. Excessive memory usage won't cause CPU load averages to go too high.

    D. High CPU load averages have no effect on any machine.