The Vormox blog
Guides, deep dives and product news on automating Proxmox VE at scale.
Blog posts
How to Restore Individual Files from a Proxmox Backup Server Snapshot (Without Restoring the Whole VM)
Recover a single deleted file or folder from a VM or LXC backup on Proxmox Backup Server using the File Restore browser or the proxmox-file-restore CLI, without a full restore.
How to Move a Virtual Disk to a Different Storage in Proxmox VE
Learn how to relocate a VM or LXC disk to different storage in Proxmox VE using the GUI's Move Storage option or the qm disk move and pct move-volume commands, live and without reinstalling anything.
How to Use S3 Object Storage as a Backend for Proxmox Backup Server Datastores
Configure an S3-compatible bucket as the storage backend for a Proxmox Backup Server datastore: bucket and IAM setup, endpoint and datastore creation, local cache sizing, migration, and the limitations you need to know before switching.
How to Auto-Start VMs and LXC Containers on Boot in Proxmox VE
Learn how to make Proxmox VE VMs and LXC containers start automatically after a reboot, using the Start at boot option and startup order settings to control the sequence.
How to Set Up OPNsense as a Virtual Firewall/Router in Proxmox VE
Turn your Proxmox VE host into your router by running OPNsense as a VM. This guide covers WAN/LAN bridge planning, correct VirtIO NIC setup, the checksum-offload bug that silently corrupts traffic, and how to keep a way in if the firewall VM ever fails to boot.
How to Fix Network Problems in Proxmox VE (VM Has No Internet Access)
Your VM boots fine but can't reach the network. Here's the actual diagnostic order — bridge, guest IP, firewall, VLAN — that finds the real cause in Proxmox VE instead of guessing and reinstalling.
Setting Up NVIDIA vGPU (Mediated Devices) in Proxmox VE
NVIDIA vGPU lets several VMs share one physical GPU instead of dedicating the whole card to a single guest. Here's the complete setup: host driver, SR-IOV, resource mapping, VM configuration, guest drivers, licensing, and the troubleshooting steps that actually matter.
Common Mistakes New Proxmox VE Users Make (And How to Avoid Them)
From deleting local-lvm by accident to locking yourself out with the firewall, these are the beginner mistakes that trip up almost every new Proxmox VE admin — and how to avoid or fix each one.
CPU Pinning and NUMA Tuning in Proxmox VE: A Practical Guide to vCPU Affinity and Topology
Map your host's NUMA topology, pin vCPUs to physical cores with affinity, and bind VM memory to the right NUMA node — a hands-on guide to deterministic, low-latency performance tuning in Proxmox VE.
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