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

Fix PyCharm Virtual Environment Not Activating

When you open a terminal in PyCharm and see the base Python interpreter instead of your virtual e...

Cloudflare SSL Full Strict: Fix Origin Certificate Errors

If you've set Cloudflare's SSL/TLS encryption mode to Full (Strict) and started seeing er...

Fix Cloudflare 521 Error: SSL Configuration Steps

If you see a Cloudflare 521 error, it means Cloudflare can't establish a TCP connection to yo...

Fix Docker Volume Permission Denied for Postgres

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

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

How to Fix Nginx Redirect Loop from HTTP to HTTPS

If you're seeing an infinite redirect loop when trying to force HTTPS in nginx, the browser u...