Mopedversicherung: Eigenverwendung
Bei einem Versicherungsanbieter steht folgendes in den Regeln: Der Einsatz des Fahrzeuges erfolgt nur zur Eigenverwendung und nicht als Selbstfahrervermietfahrzeug. Mir war nicht klar, ob
Christians Tagebuch
Latest posts
Black textures in games with Wine
In 2026-01 I bought the game "Kao the Kangaroo" in its 2022 version on GoG, to play it with the kids. Unfortunately the game starts with mostly black textures, making it unplayable. I opened a bug
Tourlaubslieder
Wir waren letztens zum Konzert von Reis against the Spülmaschine mit ihrem Album "Tourlaub". Sie nehmen bekannte Lieder und legen - sehr lustige - deutsche Text auf die Melodien drauf. Hier eine
1000€ Strafe für Betrug bei Kleinanzeigen
Im Dezember 2024 kaufte ich für 36,75€ gebrauchte Schlittschuhe bei kleinanzeigen.de - damals noch mit "ebay"-Präfix. Der Verkäufer betrog mich: Er verschickte die Schlittschuhe nicht. Meine
DynDNS via SSH and NSD
From 2012 to 2023 I had been using djbdns/dbdns' tinydns, and even wrote a small script to update my home server's IP address via a simple SSH connection - DynDNS, securely authenticated and without
Shelly Button battery swollen
We have two Shelly Button 1 devices: Physical buttons that when pressed, connect to the Wifi network and do HTTP requests. I configured one to switch lights in the living room on and off. The bottom
AI crawler attack
Last week I wanted to demo my Open DMARC Analyzer installation to my colleagues. I shared my browser window, entered the analyzer's URL and ... waited for 15 seconds. Clicking on links also took over
Spamming with Google groups
Today I noticed a new way to send spam to many people: Google Groups, a mailing list platform. In the last days I got many automatic replies from people and companies I don't know and never
Docker and ufw: Block IP addresses
This does not work anymore on 2026-07-06, and I did not investigate why. At work I had to block some very annoying spammers from POSTing to the contact form on the website. I ssh'ed into the Ubuntu
Wordpress registration spam
Spammers are using Wordpress installations with open registration to send spam e-mails to uninvolved users. The mails are sent via the "Register" function that is linked on the Wordpress login page