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

Fix Git SSL Certificate Problem on Corporate Networks

If you see git SSL certificate problem: unable to get local issuer certificate while...

Taskbar Icons Disappeared After Signing Out: Fix Guide

You sign out of Windows, sign back in, and the taskbar icons you pinned are gone—or some system i...

Fix Cloudflare Origin Certificate Permission Denied Error

You've set up a Cloudflare origin certificate on your server, but now you're seeing a ...

Fix Windows 10 Search Indexing Not Working After Update

After a Windows 10 update, you might notice that File Explorer search returns no results or is ex...

Fix Nginx 502 Bad Gateway with Docker Multiple Containers

If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...

Checklist for Troubleshooting Nginx Permission Denied Errors

Understanding the Problem

When Nginx returns a 403 Forbidden or logs an error like ...