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

Git Merge Unrelated Histories: When and How to Use --allow-unrelated-histories

You try to merge two branches and get fatal: refusing to merge unrelated histories. ...

How to Fix Cloudflare SSL Full Strict Self-Signed Certificate Error

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Cloudflare 521 Error: Server Timeout – Causes and Fixes

Cloudflare 521 error indicates the web server is down or unreachable. It appears as “web server i...

Fix Windows Search Index Exclude Folder Not Working

If you've added a folder to the exclusion list in Windows Search indexing options but files f...

How to Troubleshoot Remote Desktop Connection Issues

Remote Desktop (RDP) lets you control another computer over a network. When it fails, you usually...