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

Cloudflare Origin Certificate Setup Checklist

You've set up Cloudflare but your origin server still shows SSL errors or mixed content warni...

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Fixing Edge Sync Error 0x80072efd on Windows

If you see error code 0x80072efd when trying to sync your Microsoft Edge browser data, the sync p...

Fix PowerShell Permission Denied in VS Code

When you try to run a PowerShell script in VS Code and get a "permission denied" error, i...

Fix Nginx Upstream Connection Refused Socket Error