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. What is the major difference between journald and rsyslog?

    A. journald stores files in plaintext format, while rsyslog stores files in binary format.

    B. There is no difference.

    C. rsyslog stores files in plaintext format, while journald stores files in binary format.

  2. Which of the following statements is true?

    A. Modern systemd-based Linux distros come with either rsyslog or journald, but not both.

    B. journald and rsyslog always work independently of each other.

    C. Modern systemd-based Linux distros come with both rsyslog and journald.

    D. journald and rsyslog can never work independently of each other.

  3. What are two major differences in how journald is implemented on Ubuntu and RHEL? (Choose 2.)

    A. journald logs are persistent on RHEL, but not on Ubuntu.

    B. On RHEL, journald works completely independently of rsyslog. On Ubuntu, they work together.

    C. On RHEL, journald and rsyslog work together. On...