Step-by-step guide to building a secure OPNsense firewall on a Protectli FW4B, including hardware selection, installation, configuration, and best practices for home and small office networks.

Learn how to block ads and trackers network-wide with Pi-hole. This guide covers the benefits, step-by-step installation on Raspberry Pi or Linux, and tips for maximizing privacy and performance.

Discover how to use Tasmota smart plugs for local home automation, energy monitoring, and privacy. This guide covers flashing, setup, MQTT integration, and practical automation ideas.

Learn how to resolve certificate chain errors when moving Apple Developer certificates between Macs. This guide explains the root cause and provides a simple fix for missing intermediate certificates.

Learn how to identify and clean up unused custom ABAP code during SAP S/4 migration using SCMON data, remote checks, and custom reports. Optimize your transition with this step-by-step guide.

Learn how to identify and clean up empty development classes in SAP systems using ABAP. This guide helps streamline S/4 migration by removing unused dev classes.

Boost your ABAP productivity with advanced data element search using AMDB fuzzy search and ALV grids. Learn how to implement flexible, case-insensitive, and fuzzy searches in SAP.

Boost your SAP ABAP programs with proven performance optimization techniques. Learn how to optimize data access, internal table processing, and caching for faster, more efficient ABAP code.

Learn how to safely change SAP database fields using SE16 and the debugger. This step-by-step guide covers prerequisites, risks, and best practices for direct data modification.

Step-by-step guide to setting up advanced system monitoring on openmediavault using Grafana, Prometheus, Docker, and exporters. Learn how to visualize and track server and container metrics easily.