technical

Since fairly recently my Proxmox install has shown an almost barf inducing amount of errors along the lines of edid block 0 is all zeroes or kernel EDID has corrupt header. The issue is present on at least Promox 8.1.5 running kernel Linux 6.5.13-3-pve. Thanks for the fix goes to a couple of threads here and here. Some folks suggested disabling AST graphics, or blacklisting the i915 driver - this had no effect on my ASRock Rack E3C246D4U motherboard with i5 8500 CPU. This is a vanilla install

The imposter syndrome around almost anything to do with NixOS is as strong as the pull to use it in the first place.

If you're looking to build a small, quiet and cheap box to run OPNsense on then I have a build you might be interested in. This box has been happily running as my firewall since July 2019. I originally documented the build in this forum post over at serverbuilds.net but for posterity I wanted to record this information here too. Here's the build: Item Model Price in 2019 Approx 2023 price Notes Motherboard Intel DQ77KB $37 $50-60 Dual on-board Gigabit ethernet CPU Intel i3 3225 $29 $6

This week I launched a YouTube channel. After many years of saying I would and not, I finally have. So here goes nothing! I'll be covering topics ranging such as self-hosting, home automation, Linux, cloud infrastructure automation tooling like Ansible and Terraform and much more... Here's my first video.

Whilst building out some new Grafana dashboards over the weekend I made the switch from InfluxDB to Promtheus node exporters for scraping metrics from Linux servers. But how do you marry up the drivetemp-scsi-0-10 value output from sensors to a physical disk?

And there we have it. One PiKVM able to control and view up to 4 systems at once. And with the addition of a USB thumb drive to the KVM we can even boot any ISO we want!

Recent changes in DSM7 have made guaranteeing being able to free up ports 80/443 for use by traefik rather difficult. Using a combination of several advanced techniques with docker networking we can circumvent this requirement once and for all with the macvlan driver.

A while back I wrote about deploying DroneCI and Gitea together to build projects automatically. A few months ago my CI broke and I've only just now gotten around to fixing it. In PR #17482 the Gitea project introduced a breaking change for security reasons. They introduced a new webhook.ALLOWED_HOST_LIST value which needed to be configured in order for webhooks to work. Diagnosis In Gitea open the repo in question and navigate to the repo specific settings -> webhooks. Next utilise the rec

If you've been wanting to make your 3D printer quieter then these Sorbothane feet are the best way to do this. Using 6 of these little squash ball like rubber feet screwed into the bottom of a Prusa i3 MK3 the reduction in noise levels was truly *astonishing*. As you can see, I place my printer on a wooden butcher block countertop. Between the concrete paver and the countertop there are some anti vibration pads made of foam. The sound from the printer placed directly on the paver is much less

With the recent update to DSM7 my Synology NAS has been transformed. It now runs a recent version of docker, I can use Ansible to manage docker-compose like I do with all my other systems and it now runs systemd! I use Traefik as my reverse proxy of choice, I understand it well and use it everywhere across about a dozen hosts - both at home and in the cloud. So it's logical to me to use Traefik to handle reverse proxying and TLS certification with the Synology box I have - the DS1621+. Pre-re

OPNsense rewrites all outgoing UDP traffic by default - here's how to make Nebula work whilst traversing NAT which does this.

The board only arrived today but I've gotten it working in a couple of hours exactly the way I wanted. It really is about as close to perfect as we're going to get in this space. Should you buy one? Yes, if you need it - you should!