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. What is the default location of the cgroup filesystem?

    a. /proc/fs/cgroup/

    b. /sys/cgroup/

    c. /sys/fs/cgroup/

    d. /proc/cgroup/

  2. What must you do to see user slices with systemd-cgls?

    a. Run the command only from the local terminal.

    b. Run the command only from outside the cgroup filesystem.

    c. Run the command with root privileges.

    d. You can't. User slices never show up.

  3. How can you create your own cgroup scope?

    a. Use systemctl edit --full --force, just as you would with other systemd units.

    b. Manually create a unit file in the /etc/systemd/system/ directory.

    c. You can't. Scopes are created programmatically, and there are no .scope unit files.

    d. Manually create a unit file in the /lib/systemd/system/ directory.

  4. What does a slice do?

    a. It directly manages user mode processes.

    b. It directly manages system mode processes.

    c. It manages processes that are in either scopes or services.

    d. It manages user login sessions.