Book Image

Linux Service Management Made Easy with systemd

4.5 (2)
Book Image

Linux Service Management Made Easy with systemd

4.5 (2)

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

Answer the following questions to test your knowledge of this chapter:

  1. Which of the following statements is true?

    A. NetworkManager is better for servers because it can instantly switch between networks.

    B. NetworkManager is better for servers because it's more versatile.

    C. NetworkManager is better for desktops and laptops because it can instantly switch between networks.

    D. networkd is better for desktops and laptops because it can instantly switch between networks.

  2. True or False: If there's no renderer: line in a Netplan .yaml file, the system will default to using NetworkManager.
  3. On an Ubuntu Server machine, which of the following would you do after you've edited the network configuration file?

    A. sudo netplan reload

    B. sudo networkctl reload

    C. sudo netplan restart

    D. sudo networkctl restart

    E. sudo netplan apply

  4. What does it mean when a networkctl command shows a link as degraded?

    A. The link is offline.

    B. The link is online, but not operating...