Book Image

Mastering Ubuntu Server. - Second Edition

By : Jay LaCroix
Book Image

Mastering Ubuntu Server. - Second Edition

By: Jay LaCroix

Overview of this book

Ubuntu Server has taken the data centers by storm. Whether you're deploying Ubuntu for a large-scale project or for a small office, it is a stable, customizable, and powerful Linux distribution that leads the way with innovative and cutting-edge features. For both simple and complex server deployments, Ubuntu's flexible nature can be easily adapted to meet to the needs of your organization. With this book as your guide, you will learn all about Ubuntu Server, from initial deployment to creating production-ready resources for your network. The book begins with the concept of user management, group management, and filesystem permissions. Continuing into managing storage volumes, you will learn how to format storage devices, utilize logical volume management, and monitor disk usage. Later, you will learn how to virtualize hosts and applications, which will cover setting up KVM/QEMU, as well as containerization with both Docker and LXD. As the book continues, you will learn how to automate configuration with Ansible, as well as take a look at writing scripts. Lastly, you will explore best practices and troubleshooting techniques when working with Ubuntu Server that are applicable to real-world scenarios. By the end of the book, you will be an expert Ubuntu Server administrator who is well-versed in its advanced concepts.
Table of Contents (21 chapters)

Understanding NetworkManager

NetworkManager is a utility for managing network connectivity on your server, though it's not for everyone, and has largely been replaced with Netplan. This utility comes installed by default with older versions of Ubuntu Server, but it may not be included even on older versions if you're using a cloud appliance. Therefore, feel free to skip this section if you're not using a legacy version of Ubuntu Server as this won't apply to you otherwise.

NetworkManager is a service (also known as daemon) that runs in the background and manages your network connections. On a desktop Linux distribution, it does everything from managing connectivity, to managing your wireless networks. With it, you can configure profiles, and create custom connections you can switch between.

On servers, the added features of NetworkManager on a desktop distribution...