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

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

Cloudflare DNS Propagation: How to Check and Fix Delays

When you change DNS records on Cloudflare, propagation can take longer than expected. This articl...

Windows Security App Not Working After Reset? Try These Fixes

If you recently reset your Windows PC and now the Windows Security app won't open, shows a bl...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

Chrome Sync Not Working After Disabling Extensions: Fixes

You disabled some Chrome extensions to troubleshoot a problem, and now sync has stopped working –...