Public wiki / guides / administration / proxmox
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- Automatic Let’s Encrypt certificates on a hypervisor via ACME DNS-01 — Set up automatic Let’s Encrypt certificates on Proxmox VE nodes via the ACME DNS-01 challenge with a DNS provider plugin, including the config-encoding workaround for credentials containing newlines.
- Debian — Install lm-sensors and run sensors-detect to expose AMD Ryzen temperature/fan sensors on a Proxmox VE or Debian host.
- GPU passthrough on Proxmox VE — Step-by-step GPU passthrough setup on Proxmox VE for AMD, Intel and NVIDIA GPUs: IOMMU, VFIO binding, VM assignment, and the Error 43 workaround.
- A private NAT network for internal VMs on a Hetzner root server — Give internal-only Proxmox VMs outbound internet access via a NAT bridge on a Hetzner dedicated server, without exposing them on the public interface.
- Installing Proxmox VE on a Hetzner dedicated server via the Rescue System — Use Hetzner’s Rescue System plus a QEMU-hosted installer to install Proxmox VE on a dedicated root server that has no physical console access.
- Removing the Proxmox VE subscription notice — Patch the community/no-subscription Proxmox VE web UI to stop showing the ‘no valid subscription’ login dialog, and how to revert it.
- Reducing swap usage on a hypervisor host to protect SSD lifespan — Lower Linux swappiness on a Proxmox VE (or any Linux) host to reduce swap-to-SSD writes, with the commands to check, change and verify it.