Why a Windows 11 VM Shows Nearly 100% Memory Usage in Proxmox VE
A Windows 11 VM in Proxmox VE was showing nearly 100% memory usage in monitoring. Inside Windows Task Manager, however, actual memory usage was only…
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Tailscale Kernel TUN in Unprivileged LXC: Direct SSH Without Userspace Networking
tailscale up --tun=userspace-networking gets you a green dot in the admin console and almost nothing else. The node appears in your tailnet, tailsca…
The error pointed at the GPU. The culprit was the HBA. — a Proxmox passthrough recovery
The plan looked textbook. PCIe passthrough an NVIDIA RTX A4000 from a Proxmox 8 host into an Ubuntu 24.04 VM, giving a Filecoin sealing worker direc…
Automatically scale LXC containers resources on Proxmox hosts
LXC AutoScale is an async resource management daemon for Proxmox environments. Install via oneliner, as systemd service or Docker. It automatically…
How to Deploy a Secure Hub-and-Spoke Cluster Across Proxmox LXC
If you are running multiple self-hosted services on a single Proxmox node, leaving them on a default flat network ( vmbr0 ) is a massive security vu…
Running Docker on Proxmox: LXC vs VMs and the Firewall Rules That Actually Matter
A few months ago I pulled an old i7-7700 box out of a closet, threw 15GB of RAM at it, and turned it into my home lab. No GPU, nothing fancy. I run…
How to Install Proxmox VE (2026): Install + Update Reference
Installing Proxmox VE is genuinely easy. The graphical installer is a few screens, and it writes itself to disk in a couple of minutes. What trips p…
Proxmox Isn't Replacing VMware. It's Replacing Assumptions.
Proxmox migration assumptions are the part of the VMware exit that doesn't appear on any migration checklist — and the part that causes the most dam…
Stop picking a homelab mini-PC by TDP. The number that decides the power bill is idle watts.
A homelab box that never sleeps runs 8,760 hours a year. So the spec that decides what it costs you is not the one on the box. It is the one nobody…
Tesla P40 in a Homelab: 24GB of Inference on a Budget
The Tesla P40 is a seductive piece of hardware: 24GB of VRAM for a fraction of the cost of a modern RTX card. But after three weeks of fighting with…
I Broke My Proxmox Home Lab with a GPU Passthrough - Here's How I Fixed It
How a Kubernetes worker VM with a passed-through AMD GPU sent my entire home lab into an infinite crash loop — and the GRUB-level trick that saved i…
GPU PCI Address Instability: When Your Card Moves Between Reboots
I spent an entire afternoon debugging a VM that refused to boot, only to find out my GPU had decided to change its PCI address. One reboot and the d…
Unprivileged LXC + Docker: The runc Sysctl Permission Trap
sysctl: setting key "net.ipv4.ip_local_port_range": Permission denied I saw this error while trying to tune the network stack for a high-concurrency…