Knowledge base for software setup, errors, and daily tool work.

Nginx 502 Bad Gateway: A Practical Troubleshooting Guide

Seeing a 502 Bad Gateway from Nginx usually means the upstream server (like PHP-FPM, uWSGI, or a ...

Fix Remote Desktop 504 Timeout with Network Load Balancer

When you use Remote Desktop Gateway (RD Gateway) behind a network load balancer, a 504 Gateway Ti...

Windows Terminal Installation Guide Step by Step

Windows Terminal is a modern, tabbed terminal application for Windows 10 and 11. This guide walks...

Fix PowerShell High CPU Usage with Error 0x80070005

If you see PowerShell consuming high CPU alongside error 0x80070005 (Access Denied), the issue is...

MongoDB Authentication Failed: Administrator Checklist

Fix PostgreSQL Password Authentication Failed in pg_hba.conf

When you see psql: FATAL: password authentication failed for user "username", it usu...