December 5, 2020

Reroll and downgrade Proxmox Server Cluster after faulty upgrade

This is a quick tutorial about a case I recently encountered. After a upgrade of a clients Proxmox cluster to the latest version, two very important VMs were not able to power on again. As it turned out fixing the root of the issue would take much longer than the downtime would allow for, as […]

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September 25, 2020

Proxmox 6.2-11 VM GPU PCIe passthrough for Windows 10 on AMD EPYC 7402P and ROMED8-2t

Its very important to keep the order of this guide and not add and setup things prior or later, as this will create errors. Also I tried to keep it as detailed as possible, therefore it is going to be a fairly long article. Use this index to quickly jump to the area you need: […]

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September 20, 2020

Setup a Proxmox Two-Node High Availability Cluster with a RaspberryPi as a third Quorum vote device (qdevice)

In this tutorial we are creating a Proxmox cluster with two physical servers, node1 and node2, and we will add a RaspberryPi as a third Quorum device to make the Proxmox cluster working as intended in High Availability mode with having an odd number of cluster votes. This gives smaller business or a homelab user […]

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September 12, 2020

Automatic backups for Proxmox Server Nodes to a Synology NFS share

Problem to solve: If you have a Proxmox Server and you like tinkering around with it like I do, then you probably know that feeling that all of a sudden nothing seems to be working as it used to be and you want to re-roll to a certain point and just start all over again. […]

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September 4, 2020

Build a smart MagicMirror with two displays running on Raspberry Pi

This project was already build in 2015, but due to a recent reinstall of the MagicMirror software on my mirror, I decided to share the whole build including the up to date software setup process from scratch. Also I can tell that it ran flawless for the past 5 years now, so pretty stable 🙂 […]

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August 23, 2020

Install pihole on a ProxMox LXC ubuntu container and setup as Primary DNS for a Unifi Network

Today we install the famous DNS advertisment blocker pihole in a LXC container on a Proxmox server, and set this as our network wide primary DNS server on the Unifi controller. The cool thing is that even as pihole was born as a Raspberry Pi project, it can easily run on most other Debian-based operating […]

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July 24, 2020

Quickly resize and shrink Raspberry Pi SD card image on MacOS

From time to time you may want to quickly copy a raspberry pi image from one system to another....but only have a smaller SD card. Or you started your project as a tryout on a crazy 64GB sd card, and realize later that 8GB would be way enough. So what you want to do, is […]

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May 31, 2020

Test your internet bandwidth on CLI or Terminal with python and speedtest.net

We all know this situation: you are on a fresh setup of Linux remote server or a headleas Raspberry Pi, and somehow the speed is not feeling right. Besides a iperf LAN speedtest for your device you can quickly check your connection speed to the outside with this handy python script command: If you don’t […]

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May 31, 2020

Setup secure SSH to key only access with custom user/port on Raspbian/Ubuntu

This quick guide shows my standard routine for setting up secure SSH on new fresh installs of Raspbian or Ubuntu VMs. First if you are still using any system default user like "pi" or "root" or "admin", change this and create your own, custom user. Lets start in this example with our new user name […]

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March 30, 2020

Test real network speeds between clients/server with iperf3 and Synology

I exchanged my Synology server for a 10Gbit capable model, and after deploying it, I wanted to confirm the actual available speed over my network. For this matter I use the tool iperf3. It is a great command line interface (CLI) based tool, that supports all varieties of operating systems: from Windows over MacOS and […]

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October 25, 2019

Pi VPN Box: Anonymous Raspbian with ExpressVPN and jDownloader

This is how to turn a Raspberry Pi into a powerful VPN box, that automatically connects to a VPN on boot and keeps itself connected by trying to reconnect when disconnected. If it gets disconnected from the VPN at one point we are ensuring that all traffic gets drop until we are back connected with […]

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