Karen Hauer

@karenhauer
2 Followers
2 Following
137 Posts
Class of 2026 🎓 future UF💙
Senior Elite Gymnast⭐
World Champions Centre ❤️🤍💙
4x USA National Team Member 🇺🇸
Karen HauerMay 25, 2025
Jan Wildeboer 😷May 24, 2025

New blog post: My Cute Homelab, in which I explain the basics of my homelab setup with a cute 10 inch rack, ThinkCentre Tiny PCs running RHEL (Red Hat Enterprise Linux) without getting lost in too much nerdy details (I hope). With complete BOM (Bill of Materials).

Replies to this toot will soon show up as comments under the blog post. Enjoy and share your thoughts on my setup! And feel free to AMA (Ask Me Anything) on my setup in the replies!

https://jan.wildeboer.net/2025/05/Cute-Homelab/

My Cute Homelab (updated)

As I experiment a lot with open source solutions, I am always in need of a bit of compute power to run stuff on. Nowadays, with containers and automation through CI/CD, that has become a lot simpler compared to, say, 5-10 years ago. You just need a few simple, but powerful enough machines, a bit of networking and you can play around. So. Let me explain my current homelab setup. Updated 2025-07-21.

Jan Wildeboer's Blog
Karen HauerMay 25, 2025
Show threadJan Wildeboer 😷May 24, 2025
Because someone asked: The rack draws around 25-30W in total on average. It may peak at 60-75W when I put the ThinkCentres under a lot of load, but I haven't seen it go above that.
Karen HauerMay 25, 2025
Jan Wildeboer 😷May 24, 2025
Did an in-place upgrade from RHEL (Red Hat Enterprise Linux) 9.6 to 10.0 on one of my Thinkcentre Tiny PCs and it went almost perfectly well. I had to do a `dnf install podman` afterwards because that was seemingly lost or forgotten in the process. The upgrade process also warned that after it is done, SELinux would be set to `permissive` and I should manually switch it back to `enforcing`. Which I did and all is good :)
Karen HauerMay 25, 2025
Show threadJan Wildeboer 😷May 24, 2025
(As I have the free Developer Subscription, I also have full access to the knowledge base and other stuff, so I could simply follow the steps in https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/10/html/upgrading_from_rhel_9_to_rhel_10/index and am now a happy Coughlan user :)
Karen HauerMay 25, 2025
Jan Wildeboer 😷May 24, 2025
Rap artists and House DJs from the 1990s must be looking at the arguments from #OpenAI and #Meta on why they should be allowed to ignore copyright and authorship laws with a certain level of astonishment, looking at their court cases from that time for using samples.
Karen HauerMay 25, 2025
Jan Wildeboer 😷May 24, 2025

"So we did a pilot of your Trump Show pitch. The concept sounded great and he immediately agreed. Once a week Donald Trump gets hooked up to a polygraph and every time he lies, he has to fire someone from his administration with the candidate list coming from audience polls. But yeah, well. Being forced to fire his whole cabinet after 25 minutes didn't go down well. At least we now know the brand of his tan. That was the only truth he told. Sorry to hear you have been deported!"

#MicroFiction

Karen HauerMay 25, 2025
Larvitz  May 24, 2025

For ~7 Months now, my Git-Server (Forgejo) had an invalid A entry in the DNS.

The result was, that it was only reachable via IPv6 (The AAAA record was correct.)

The only two situations, where I noticed that, were on the WiFi of German railway (WifiOnIce) and two Hotel Wifi Networks. But that was easily solvable with a RoadWarrior VPN to get modern IP conenctivity.

My home-internet and my two mobile data plans, all have proper IPv6.

I'll now scrap the A entries entirely and save myself the 2€/month, Hetzner charges me for IPv4 and run that infrastructure v6-ONLY!

#ipv6 #networking

Karen HauerMay 25, 2025
Show threadJan Wildeboer 😷May 24, 2025
And just finished the same process on the second ThinkCentre Tiny. So my homelab is now running RHEL 10 :)
Karen HauerMay 25, 2025
Jan Wildeboer 😷May 24, 2025

#3GoodThings

- Upgraded my homelab to RHEL10 and nothing broke.
- Posted a blog post describing my homelab setup
- decalcified the kettle, coffee machine, the aerators from all faucets

Now relaxing with a cuppa.

Karen HauerMay 25, 2025
Jan UlbrichMay 24, 2025
Hey folks, 👋 at SafeNow we’re looking for a strong Security Officer (permanent position in or around Munich, m/f/d, international team, freelance gig only if we don’t find someone suitable) and I would appreciate if you could give me some hints… 😇 Obviously with a strong background on IT-security, but with a more holistic view on security and safety. And: Sorry for maybe annoying you with this post. ❤️ #FediHire