Let’s Encrypt certificates behind a Load Balancer
Let’s Encrypt and Certbot make issuing and renewing TLS certificates easy — until your servers sit behind a...
Print-Ready PDFs: RGB to CMYK with Ghostscript
When preparing a PDF for professional printing, color accuracy is critical – especially when working with commercial print...
Photography
Since 2014 I have been seriously engaged in photography and gradually try to get away from the “click...
Follow me on flickr
Step into a visual journey through moments frozen in time. These photographs were taken with the Sony Alpha...
Lightroom without subscription
Unfortunately Adobe has changed its strategy to offer Lightroom only in the Creative Cloud as a subscription service....
Checkmk: Get Real-Time Alerts via Telegram
Monitoring is essential for IT teams, but traditional alert methods like email or SMS can be slow, cluttered,...
Connection Error to MQTT broker SSL/TLS
A problem that accompanied me for more than half a year, I spent evenings with error analysis and...
DIY Car Entertainment System
Build your own Entertainment System out of a Raspberry PI3 and a Tablet. We planned our vacations to...
Build Your Own Weather Station with Arduino
Anyone can walk into a store or electronics dealer and buy a ready-made weather station. But when it...