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

Setting Up Cloudflare Wildcard Subdomains for Multiple Sites

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

Docker Compose Port Mapping: Fix Common Issues

You've defined a ports section in your docker-compose.yml, but the ...

Fix Docker 'No Space Left on Device' Volume Error

When Docker reports 'no space left on device' for a volume, the symptom is often a contai...

Fix 'git remote origin already exists' Error in GitLab

Fix Nginx HTTP to HTTPS Redirect Loop Error

You set up an HTTP-to-HTTPS redirect in nginx, but now your browser shows a redirect loop error. ...

Fix Windows 11 WiFi No Internet Due to Proxy Settings

If your Windows 11 laptop shows full WiFi bars but browsers say “No internet,” a common culprit i...