Expunge old mails by folder and age in Dovecot
Keeping mailboxes lean is essential for performance and storage management on self-hosted email servers. Over time, folders like...
Quick and complete Maildir usage summary
Managing Maildir mailboxes across multiple users can quickly become a challenge. How do you find out who’s using...
How to delete the entire Git History
There are situations where you want to keep your project files but get rid of the entire Git...
VSCode-Server for browser-based remote development
VSCode-Server lets you run Visual Studio Code in the browser on remote servers. It’s lightweight, fast, and perfect...
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...
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...