I decided to write up some notes on wiring a u-blox NEO-M8N GPS module to a Raspberry Pi 5 via GPIO. This was in order to configure it as a PPS (pulse-per-second) time source for …
Category: System Admin
System admin for Linux, Windows etc.
Container won’t start after upgrading to Debian 13
Quick note to myself (and anyone else who hits this). I upgraded one of my LXC containers — the one that hosts my websites — from Debian 12 to Debian 13 (Trixie). After the upgrade, …
NVIDIA Tesla GPU passthrough to LXC container on Proxmox
Quick note to myself on getting Tesla P100 and P4 cards accessible inside a privileged LXC container on Proxmox 8.4 for PyTorch workloads. This is the LXC approach — not VM passthrough via vfio. LXC …
SuperMicro X9 IPMI debugging and BMC firmware flash (1.73 to 3.62)
Quick note to myself (and anyone else who hits this) on getting IPMI working and flashing BMC firmware on the SuperMicro X9DRG nodes in my cluster. Two separate problems, documenting both. All my X9 nodes …
Reset root password for Linux Container (LXC)
Setting up Linux containers is very easy in ProxMox, but one of the things that you need to do is set a password when you create the image. Makes sense, especially if others have access …
IBM NSOne shell scripts
I have been using IBM’s NSOne system to manage the DNS for my domains. I needed a good way to manage those domains via scripts, so I put these together. Hopefully they’ll be useful for …
Using ‘dehydrated’ for Let’sEncrypt SSL with IBM NSOne
Since I’m using Proxmox I wanted to be able to have an internal system/container that had the purpose of managing my SSL certificates for the domains I have. I am using IBM NSOne for my …
Custom SSL certificates on Unifi UDM Pro
This is applicable to Unifi OS 3.2.x With my SSL certificates being managed by a different system via LetsEncrypt, I do need to copy them over to my UDM pro periodically because they only last …
Dynamic DNS via shell script and IBM NS1 (nsone)
I am using IBM NSOne for my domain’s DNS. I went with them after trying some other providers. I really like the API driven nature of it and that it will be free for my …
Making a Proxmox VM in to an LXC template
When using Proxmox one of the things that feels helpful to do is to configure the LXC (Linux Container) OSes exactly how you like them. We all have our preferences of what we want in …