blog.domainmess.org

This year I also attented the EOFS Workshop on Open Source Parallel Filesystems.

When working with networks types other than Ethernet bonding is often not supported or just with a reduced feature set.

Since I work in maintaining a smaller HPC cluster at the moment I had the chance to attend the ISC Conference for the first time.

Who can truly say that they never wished for a way to write files to two places at the same time?!

In 2024 I first attened the EOFS workshop about opensource parallel filesystems.

Just a collection of commands an config snippets I use to work with nixos.

Instead of running through a installer everytime you setup a PC you can create a bootable image with mkosi After my first post about mkosi where I introduced the tool, I tried to use it as often as I could to easy the pain of spontanious image creation.

Through my work at Cosmic Cable Ltd.

I always wanted to get hands-on experience with eBPF as it seems to be an exciting technology.

“Use less NAT” is a sentence I really like to hear.

During a search to make a Linux application suitable for rolling upgrades I search for a way to overtake a already bound TCP port.

By chance I found the Blog and Videos of Tanel Poder.

In Octobre 2023 I attended the LAD23 in Bordeaux: the Lustre Administration and Development workshop.

Yesterday a friend ask me if it is possible to route the outgoing traffic of a Linux machine with a specific destination port via a wireguard VPN.

When it comes to make code or config publicy available as open source one has always to make sure that the repo doesn’t contain any sensitve information.

Together with a friend, I found a old loudspeaker box in the storage of the CCC which contained the material of the Blinkenlights project.

In my new apartment I luckily have a fibre (FTTH) which terminates in the living room.

In my current job we use Proxmox clusters as VM hosts and a lot of Debian VM on them.

In 2016 and 2022 I participated in a project called “Cosmic Cable Ldt.”, a fictional company which provides telephone booths at Fusion Festival.

Installing (Linux) operating systems is a time consuming and, even worse, repetitive task.

To work without external display I wanted to have a laptop stand which needs less space on the table than the laptop itself.

Sharing data between VMs is a headache every admin had once in a while.

A while ago I realised, that some of my ubuntu systems, most of them nspawn containers, don’t receive any updates.

I had two Arch Linux machines in short time where pacmans database was deleted by accident (it resides under /var/lib/pacman/).

In some setups, mostly big storage arrays, SATA drives are prevented from spinning up automatically.

PXE boot concepts are often complicated chains of many stages.

Excel files can protect sheets/cells to prevent accidental editing.

Postgres can get in a sitation where there are corrupt datasets in the DB which are neither readable nor deleteable.

A few times I had the need to build Arch Linux AUR packages which took a long time on my notebook.

We disassembled a large equipment cabinet in our storehouse to use its space and I got a lot of pneumatic gear out of it.

I had another air filter with a barometer left over.

The story of struggeling with the always wrong DNS server on my laptop and the behaviour of systemd-resolved with static and dhcp announced DNS servers.

A desk lamp made from an old alternator and an industrial shade After my wisdom teeth have been drawed I had two times two weeks of being at home, half the day on painkillers *_* First I wanted to build a light for bringing my balcony plants through the w…

LLMNR is a rather easy yet unknown protocol to resolve hostnames on a local link.

This year I visited Brussels with some colleagues to attend the FOSDEM Conference for the first time https://fosdem.org Conference and Organisation The conference itself takes place in the Université Liberal Brussels (ULB) which is a campus of more or less

I decided to use my second APU2c4 board as my new Nextcloud/Mailserver.

Preamble This is a classic one.

“I’m a huge fan” With this words on it this totally broken Bladecenter fan was lying for something like a year in our office.

Once I bought a Lenovo Thinkpad Edge, can’t remember the exact number, but I selected the small CPU and it was so slow, that I smashed it one day so that the display was broken.

Storage server with APU2c4 Board, btrfs and systemd-nspawn Homeserver.

Introducing netjail Long time ago I felt the need to force a single application to use a specific network connection.

A friend of mine gave me the case of an old HP Gen8 Microserver, chassis only without the board or power supply.

I usually use systemd user services to get some simple tasks done on my workstations like backups of my homefolder or changing my wallpaper any hour.

After using Networkmanager and Wicd for a few years each I craved for a less complicated networking setup on my laptop.

blog.domainmess.org This will be a random collection of stuff I do or should not do or already did.