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

Questions

  1. How does systemd handle a service that still uses an old-fashioned init script?

    a. It just uses the init scripts directly.

    b. It creates and saves a service unit file in the /etc/systemd/system/ directory.

    c. It dynamically generates a service unit file in the /run/systemd/generator.late/ directory.

    d. It won't run a service that only has an init script.

  2. What is the recommended way of configuring disk partitions on a systemd machine?

    a. Manually create a mount unit file for each partition.

    b. Edit the /etc/fstab file as you normally would.

    c. Manually create partition device files in the /dev/ directory.

    d. Use the mount utility.

  3. Which of the following files represents the root filesystem?

    a. root.mount

    b. -.mount

    c. /.mount

    d. rootfs.mount

  4. Which of the following commands would show you how long each service takes to start during bootup?

    a. systemctl blame

    b. systemctl time

    c. systemd-analyze

    d. systemd-analyze time

    e. systemd-analyze blame