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

Introducing CaaS solutions

CaaS is a subset of the IaaS cloud service model. It lets customers use individual containers, clusters, and applications on top of a provider-managed infrastructure. CaaS can be used either on-premises or in the cloud, depending on customer's needs. In a CaaS model, the container engines and orchestration are provided and managed by the CSP. The user's interaction with containers can be done either through an API or a web interface. The container orchestration platform used by the provider—mainly Kubernetes and Docker—is important and is a key differentiator between different solutions.

We covered containers (and VMs) in Chapter 11, Working with Containers and Virtual Machines, without giving any detailed information about orchestration or container-specialized micro operating systems. We will now provide you with some more details on those subjects.

Introducing the Kubernetes container orchestration solution

Kubernetes is...