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 DevOps

DevOps is a culture. Its name comes from a combination of development and operations, and it envisions the practices and tools that are used to deliver rapidly. DevOps is about speed, agility, and time. We all know the phrase time is money, and this applies very well to the IT sector. The ability to deliver services and applications at a high speed can make the difference between being successful as a business and being irrelevant on the market.

DevOps is a model of cooperation between different teams involved in delivering services and applications. This means that the entire life cycle, from development and testing, up to deployment and management, is done by teams that are equally involved at every stage. The DevOps model assumes that no team is operating in a closed environment, but rather operates in a transparent manner in order to achieve the agility they need to succeed. There is also a different DevOps model whereby security and quality assurance teams...