The Proxmox subscription level for a node can be changed at any time by simply applying a subscription key through the GUI. Different subscription levels have different natures of package updates. If a node has started with no subscription, it can always be changed to any paid subscription at any given time. After the subscription level changes, it is important to update the node accordingly so that updates related to the subscription level can be applied. In this section, we will see how to update a node if the subscription level of the node changes at any time. For example, we are assuming that the node is on no subscription and we are adding a paid-level subscription. We can upload a subscription key through the Subscription tabbed menu for a node on the Proxmox GUI. But the modification that needs to be made to activate the repository for...
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Mastering Proxmox
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Mastering Proxmox
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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 (17 chapters)
Preface
Free Chapter
Understanding Proxmox VE and Advanced Installation
Creating a Cluster and Exploring the Proxmox GUI
Proxmox under the Hood
Storage Systems
Installing and Configuring Ceph
KVM Virtual Machines
LXC Virtual Machines
Network of Virtual Networks
The Proxmox VE Firewall
Proxmox High Availability
Monitoring the Proxmox Cluster
Proxmox Production-Level Setup
Back Up and Restore Virtual Machines
Updating/Upgrading Proxmox
Proxmox Troubleshooting
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