Mastering Ubuntu Server: Administer, secure, automate, and scale Ubuntu Server 26.04 across on-premises, cloud, AI workloads

Go from Linux fundamentals to running production-grade Ubuntu Server 26.04 environments, covering networking, security, virtualization, containers, cloud, and self-hosted LLMs with hands-on, real-world examples

Key Features

• Get up to speed with the latest features and capabilities of Ubuntu Server 26.04
• Master installing, managing, securing, and troubleshooting Ubuntu Server
• Automate and scale Ubuntu across containers, Kubernetes, cloud, and AI workloads

Book DescriptionUbuntu Server is a stable, flexible, and powerful Linux distribution used in environments ranging from individual servers to large-scale infrastructure. Mastering Ubuntu Server, Fifth Edition gives you the practical knowledge needed to administer real Ubuntu Server 26.04 deployments confidently. Starting with installation, essential commands, users, permissions, packages, processes, storage, and networking, the book builds a strong foundation in everyday server administration. You will then configure DHCP, DNS, VPNs, file sharing, databases, Apache, NGINX, and Nextcloud, before working with KVM, LXD, Docker, and Canonical Kubernetes. This updated edition expands into modern infrastructure practices, showing you how to automate configuration with Ansible, provision cloud resources with Terraform, and deploy Ubuntu instances on AWS and Google Cloud. You will also run self-hosted large language models using Lemonade, manage Ubuntu fleets at scale with Landscape, and prepare for Canonical Academy certifications. Finally, you will apply practical security, vulnerability management, troubleshooting, backup, and disaster recovery techniques. By the end of this book, you will be ready to manage secure, automated, production-grade Ubuntu Server environments across on-premises and cloud infrastructure. What you will learn

• Install and configure Ubuntu Server 26.04 on multiple platforms
• Manage users, permissions, packages, processes, and storage
• Configure networking, SSH, VPNs, DNS, DHCP, and file sharing
• Deploy databases, web servers, virtual machines, and containers
• Automate infrastructure using Ansible and Terraform
• Run self-hosted LLMs with Lemonade and safely run AI Agents
• Deploy Kubernetes workloads and Ubuntu cloud instances
• Secure, troubleshoot, back up, and recover Ubuntu servers

Who this book is for

This book is for Linux system administrators, DevOps and cloud engineers, site reliability engineers, infrastructure professionals, and IT enthusiasts who want to build practical Ubuntu Server skills. It is also suitable for readers pursuing Canonical Academy certifications or moving into Linux administration. No previous Ubuntu Server experience is required, although familiarity with basic computing concepts is helpful. Prior Linux, IT administration, or shell experience will help readers progress through the advanced topics more quickly.