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

Working with Docker

We will use Ubuntu 20.04.1 LTS for this section's exercises, on an Intel NUC tenth generation machine using a quad core processor, 16 GB of RAM, and a 512 GB SSD drive. The first thing we will do is install Docker Community Edition. But before we do that, let's go into a little detail about how Docker, as an entity, operates.

Which Docker version to choose?

In order for the business to be viable, Docker has two different products available, the Docker Community Edition (CE) and the Docker Enterprise Edition (EE). Out of these two, only the EE version is responsible for the revenue of Docker.

The CE edition is available for free and is open source software. The CE is available in two versions – Edge and Stable. The former is the one to deploy the latest features on a monthly release model, while the latter is offering stable software versions, tested, and with a 4-month security update interval.

The EE edition is the enterprise-ready...