Network Time Protocol (NTP) is one of those foundational services we often set and forget. But what exactly happens to your downstream clients when a Cisco switch or switch stack acting as an NTP server loses the ability to sync with its own upstream NTP source? How a Cisco switch
Docker
If you use Watchtower to keep your Docker containers updated automatically, you might have recently noticed that it has silently stopped working. If you check your logs, you’re likely seeing an error about the client version being "too old."
Raspberry-Pi
The Raspberry Pi is a fantastic, credit-card-sized computer that's perfect for a multitude of projects. From robotics to home automation, its versatility is unmatched. But today, we're going to set the stage for something impactful: implementing a Raspberry Pi as a powerful ad-blocker and VPN server
The PostgreSQL 18 Docker Image has dropped, packed with powerful new features like Asynchronous I/O (AIO) for faster reads and native UUIDv7 support. For those of us running Postgres in Docker, however, the most critical update isn't necessarily a feature, but a fundamental change to the official
DNS
Tired of relentless ads interrupting your browsing and apps? Worried about companies tracking your online activity? At present, online advertising and user monitoring are more aggressive than ever. What if you could shield your entire network–every phone, computer, and smart TV–from this, all at once? You can with
For decades, network security has been a high-stakes game of cat and mouse. Cybercriminals, state-sponsored actors and hacktivists constantly evolve their tactics, while defenders strive to build stronger walls and smarter alarms. But the advent of Artificial Intelligence (AI) isn't just another evolutionary step; it's a
PostgreSQL
Data security is paramount. When you need to back up or migrate an entire PostgreSQL cluster, you're handling sensitive information that requires robust protection. This guide will walk you through the best way to export all your databases, roles (users), and global objects to a single, encrypted file
Ubuntu
If you're an Ubuntu user running Flatpak applications with an NVIDIA graphics card, you may have encountered a frustrating and persistent error message during updates: Could not unmount revokefs-fuse filesystem at /var/tmp/flatpak-cache-[...]: Child process exited with code 1 This error can stop your updates and installations
