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April Fool's day 2025

Sat, 26 Apr 2025 23:00:00 +0200

The internet gets just weirder. But actually the reality gets weirder, spreading into the internet.

This is a write-up of an experience about how my own reality got bent.

Some random X session in March

I still have my Twitter account. From time to time I sign in there when I need to read a Twitter thread, which you cannot read anymore fully when not being signed in.

So a few weeks ago, exactly this happened and I start browsing my feed afterwards. The X feed nowadays is totally confusing. It’s not visible why some weird tweets show up.

Simple comparison of borg, restic and rustic (2024)

Wed, 02 Oct 2024 15:00:00 +0200

I had been using borg the last years as my backup solution. I have used restic at one of my previous employers, but stopped right after that.

But with rustic on its way and borg2 also in development, there are two new candidates to compare to.

I previously only compared restic and borg against each other. This was interesting, because restic was multithreaded, while borg was not. But borg was equally fast over a 200Mbit/s(?) line, because it compressed the data. And also did a test-shoot with rustic earlier this year.

Ubuntu Full Disk Encryption with LACP interfaces

Wed, 27 Mar 2024 15:00:00 +0100

When unlocking the full disk encryption of a server, you usually need to set the ip= kernel command line parameter and install dropbear into the initramfs.

After a bit fiddling, it should work.

When having an LACP interface as the main interface, there is no out of the box solution to configure the network. You need to assemble the configuration manually.

Other forums suggest just using the first interface. But this works only under some circumstances. You need to use a force-up or similar on your switch port to effectively disable LACP on the interface.

Rotate EC2 from Autoscaling Group with Terraform

Fri, 17 Apr 2020 19:35:00 +0200

Deploying infrastructure on AWS with terraform is actually a straight forward job. Most of the aws provider resources are highly integrated and match the AWS API tightly. But for some use cases, it becomes clear, that terraform is just a third party software and not endorsed by Amazon itself.

This is the case, when we have an autoscaling group and want to rotate the instances after applying a new launch template.

How does TRIM affect SSD speed?

Mon, 21 May 2018 19:30:00 +0200

Just recently, I built a desktop PC for myself. I mainly assembled it of used and refurbished parts. One of those parts had been a used Samsung 840 PRO 256GB from a close colleague. After a space upgrade he didn’t need it anymore.

My plan was to copy the whole installation from my laptop’s SSD onto the colleague’s SSD with just minimal changes. I partitioned the drive, configured the crypto, LVM and filesystems and then fired up rsync -aHxEXA for all my partitions.

Setting up an Odroid C2/Raspberry Pi with librespot, PulseAudio and mopidy

Tue, 20 Feb 2018 10:00:00 +0100

Why?

I’ve got an old stereo sound system, which I only rarely use. But it’s not bad either. It’s just not the case, that I listen to the radio or CDs anymore. My CD collection is digitalized and most of the time, music gets distributed to me via Spotify.

But my laptop has poor sound and I’m always too lazy to pull the audio cable through the room and plug it into my laptop.

Github PRs

Mon, 19 Feb 2018 16:00:00 +0100

Fetching Github Pull Requests easily

Github has got a nice and handy feature with pull-requests, you all know this. But how do you fetch them fast and without any effort?

Github uses a specific “namespace” to store the refs of pull-requests. Any normal git-client won’t fetch it, so the repo stays clean for a normal user. We have to modify the git-client.

git config --add remote.origin.fetch "+refs/pull/*:refs/pull/*"

This gives you refs like: