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

Fix Nginx 502 Bad Gateway with Docker and PHP-FPM

You have a Docker setup with Nginx proxying to a PHP-FPM container, and you're getting a 502 ...

Fix Windows 11 WiFi No Internet Due to Antivirus Blocking

If your Windows 11 PC shows full WiFi bars but no internet access, your antivirus might be blocki...

Setting Up Cloudflare Wildcard Subdomains for Multiple Sites

If you manage multiple sites or services on different subdomains (like app.example.com, blog.exam...

Fixing Cloudflare 521 Error: Enable Origin Pull Setup

If you see a Cloudflare 521 error, it means Cloudflare can't connect to your origin server. O...

Fix 'Git Remote Origin Already Exists' When Updating Remote URL

Git Merge Conflict Checklist Before Merging

You're about to merge a branch, but you've been burned by merge conflicts before. This ch...