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 are a few questions for refreshing or pondering upon some of the concepts you've learned in this chapter:

  1. Enumerate some of the essential services of a Kubernetes Control Plane node. How do the worker nodes differ?
  2. What command did we use to bootstrap a Kubernetes cluster?
  3. What is the preferred CLI for managing an EKS cluster? How about the CLI for managing AKS clusters? How are these CLI tools different from kubectl?
  4. What is the difference between imperative and declarative deployments in Kubernetes?
  5. What is the kubectl command for deploying a Pod? How about for creating a deployment?
  6. What is the kubectl command to access the shell within a Pod container?
  7. What is the kubectl command to query all resources related to a deployment?
  8. You exposed a deployment using a ClusterIP service type. Can you access the service outside the Kubernetes cluster? Why?
  9. How do you scale out a deployment in Kubernetes? Can you think of the different...