Book Image

Mastering Linux Administration

By : Alexandru Calcatinge, Julian Balog
Book Image

Mastering Linux Administration

By: Alexandru Calcatinge, Julian Balog

Overview of this book

Linux plays a significant role in modern data center management and provides great versatility in deploying and managing your workloads on-premises and in the cloud. This book covers the important topics you need to know about for your everyday Linux administration tasks. The book starts by helping you understand the Linux command line and how to work with files, packages, and filesystems. You'll then begin administering network services and hardening security, and learn about cloud computing, containers, and orchestration. Once you've learned how to work with the command line, you'll explore the essential Linux commands for managing users, processes, and daemons and discover how to secure your Linux environment using application security frameworks and firewall managers. As you advance through the chapters, you'll work with containers, hypervisors, virtual machines, Ansible, and Kubernetes. You'll also learn how to deploy Linux to the cloud using AWS and Azure. By the end of this Linux book, you'll be well-versed with Linux and have mastered everyday administrative tasks using workflows spanning from on-premises to the cloud. If you also find yourself adopting DevOps practices in the process, we'll consider our mission accomplished.
Table of Contents (20 chapters)
Section 1: Linux Basic Administration
Section 2: Advanced Linux Server Administration
Section 3: Cloud Administration


Here's a quick quiz to outline and attest some of the essential concepts covered in this chapter:

  1. How does the OSI model compare to the TCP/IP model?
  2. Think of a couple of TCP/IP protocols and try to see where and how they operate in some of the network administration tasks or applications you are familiar with.
  3. At what networking layer does the HTTP protocol operate? How about DNS?
  4. What is the network class for IP address
  5. What is the network prefix corresponding to network mask
  6. How do you configure a static IP address using the nmcli utility?
  7. How do you change the hostname of a Linux machine?
  8. What is the difference between the POP3 and IMAP email protocols?
  9. How does SSH host-based authentication differ from user-based SSH key authentication?
  10. What is the difference between SSH and TELNET?