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

Fix Nginx Config Test Failed: Permission Denied

When you run nginx -t and see permission denied, the config file syntax...

Fix WSL Ubuntu Cannot Ping External Network

You run ping google.com from your WSL Ubuntu terminal and get no response, or an err...

Fix Remote Desktop Rate Limit and Permission Denied Errors

You're working remotely, and suddenly your Remote Desktop client shows "Access denied" or "Rate l...

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 ...

Chrome High Memory Usage: Setup Guide for Low Memory Mode

If Chrome is eating up your RAM and slowing down your system, you're not alone. This guide covers...

Fix Outlook High CPU Usage Caused by Antivirus Scanning

Symptoms and Likely Cause

You notice Outlook consuming 50% or more CPU, making your syste...