Tutorial

 German Jul 2025 / DevOps

netcup Server Umzug: Festplatte via Snapshot migrieren

Wir erklären den Umzug eines root / VPS Servers innerhalb von netcup auch über verschiedene Generationen mithilfe von Snapshot Import / Export.

Dec 2023 / Apple

Fix Spotify & Apple AirPods Pro Randomly Changing Volume Level

How to fix the problem or bug of randomly changing the volume level of Apple AirPods Pro 2 used with the Spotify app, tested on iOS 17.

Sep 2022 / Coding

[How-to] Salesforce Pardot Dependent Field on Checkbox

In Salesforce Pardot Forms, fields can be made dependent on each other. This does not work for checkboxes. Our javascript code makes it possible.

Mar 2022 / Tutorial

Mail Security: MTA-STS + Mailcow

MTA-STS is a security mechanism to prevent attackers from rerouting, reading and modifying your emails. Read how to use MTA-STS with mailcow.

Dec 2021 / Tools

[How-to] Microsoft Teams: Add Animated Video Background Image (GIF)

Microsoft Teams doesn't allow to add an animated video background. This tutorial shows a trick how to change the virtual background into a GIF image.

Aug 2021 / Smart Home

[How-to] Connect IKEA TRÅDFRI Devices (Lights, Driver, I/O Dimmer, ...) to Philips Hue Bridge

Since IKEA TRÅDFRI and Philips Hue both use ZigBee, this article shows how to use the I/O Dimmer to control lights and drivers over a Hue Bridge / Gateway.

Apr 2021 / DevOps

macOS Big Sur: Python 3.7 Installation with Homebrew

A step-by-step tutorial on how to install Python 3.7 on macOS Big Sur with Homebrew and fix all upcoming bugs, errors and problems with popular packages.

Oct 2020 / Raspberry Pi

Raspberry Pi – Basic Setup on Raspbian (Raspberry Pi OS)

This quick guide describes the important steps to create a fully working Raspbian (Raspberry Pi OS) system (langauge setup, static IP, expand disk etc.).

Oct 2020 / Apple

[How-to] Fix Apple Watch Band not Locking into Place (no click)

Some Apple Watch wrist bands are faulty and do not lock into place. They slide just through and produce no click sound. You can fix it by applying pressure on the locking mechanism.

Sep 2020 / DevOps

[How-to] Own CA Certificate in GitLab CI with dind service (docker-in-docker)

How to properly install a custom CA certificate in GitLab CI dind service to prevent the error: "x509: certificate signed by unknown authority".

Sep 2020 / DevOps

[How-to] Migrate ownCloud 10.5.0 to Nextcloud

This step-by-step tutorial explains how to migrate an existing ownCloud instance to Nextcloud by preserving existing shares and federations.

Sep 2020 / Raspberry Pi

Raspberry Pi 3 as Desktop Replacement – 21:9 Ultrawide, exFAT, VS Code, ...

Raspberry Pi 3 as desktop replacement: 21:9 ultrawide resolution support, exFAT support, use latest software: Visual Studio Code, node.js, neovim

May 2020 / Coding

Ghost CMS Editor: Open external Links in a new Tab or Window (change HTML target)

The Ghost CMS editor doesn't have a possibility to change link settings to open external links in a new tab or window. But there are some workarounds!

Apr 2020 / Off-Topic

Coronavirus Tip and How To: Remote Party Gaming with your Friends

How to use video conferencing tools like Jitsi to play the Jackbox Party Pack games remotely with your friends in times of the coronavirus COVID-19.

Mar 2020 / Tutorial

[How-to] Make Synology Diskstation Fans quieter! - via custom Fan Profile and Hibernation

How to make your Synology Diskstation quieter by using hibernation and installing a custom fan profile to lower fan speeds and stop fans if not needed.