Book Image

Mastering Proxmox, - Third Edition

By : Wasim Ahmed
4 (1)
Book Image

Mastering Proxmox, - Third Edition

4 (1)
By: Wasim Ahmed

Overview of this book

Proxmox is an open source server virtualization solution that has enterprise-class features for managing virtual machines, for storage, and to virtualize both Linux and Windows application workloads. You'll begin with a refresher on the advanced installation features and the Proxmox GUI to familiarize yourself with the Proxmox VE hypervisor. Then, you'll move on to explore Proxmox under the hood, focusing on storage systems, such as Ceph, used with Proxmox. Moving on, you'll learn to manage KVM virtual machines, deploy Linux containers fast, and see how networking is handled in Proxmox. You'll also learn how to protect a cluster or a VM with a firewall and explore the new high availability features introduced in Proxmox VE 5.0. Next, you'll dive deeper into the backup/restore strategy and see how to properly update and upgrade a Proxmox node. Later, you'll learn how to monitor a Proxmox cluster and all of its components using Zabbix. Finally, you'll discover how to recover Promox from disaster strikes through some real-world examples. By the end of the book, you'll be an expert at making Proxmox work in production environments with minimal downtime.
Table of Contents (23 chapters)
Title Page
About the Author
About the Reviewers
Customer Feedback

Chapter 3. Proxmox under the Hood

In the previous chapter, we saw how the Proxmox GUI looks and also looked at its features. In this chapter, we will take a look how configuration files hold a Proxmox virtualization platform together, and the files to be used for advanced configuration and how they are used to troubleshoot a Proxmox platform. Proxmox is built on Debian Linux, which is very stable with a large active community. So, it inherited the heavy dependency on configuration or .conf files as a primary means to store various configurations. The Proxmox GUI provides you with the ability to manage a cluster, but does not provide direct access to any configuration files. Any direct changes by advanced users have to be done through a command-line interface (CLI). Commonly used scenarios, such as adding special arguments to configuration files, is done through the CLI. In this chapter, we will cover the following topics:

  • The Proxmox cluster file system, or pmxcfs
  • The Proxmox directory structure...