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. Which of the following statements is true?

    A. You can safely use podman under cgroups Version 1 to set resource limits on rootless containers.

    B. You can safely use podman under cgroup Version 2 to set resource limits on rootless containers.

    C. You can't set resource limits on podman containers.

    D. No special privileges are required to set resource limits on rootless podman containers.

  2. What is the difference between MemoryMax and MemoryHigh?

    A. MemoryMax is a hard limit, and MemoryHigh is a soft limit.

    B. MemoryHigh is a hard limit, and MemoryMax is a soft limit.

    C. They both do the same thing.

    D. Neither one does anything.

  3. Which of the following statements is true about delegation?

    A. It's perfectly safe for both cgroups Version 1 and cgroup Version 2.

    B. It's only safe for cgroups Version 1.

    C. It's never safe to use delegation.

    D. It's only safe for cgroup Version 2.

  4. What is the first step for converting a RHEL 8-type system to cgroup Version...