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

Fix Firefox Secure Connection Failed Error Due to Antivirus

You try to visit a website in Firefox and see a message like “Secure Connection Failed” or “PR_CO...

Fix 'nginx: configuration test failed unexpected end of file'

When running nginx -t or nginx -t -c /path/to/nginx.conf, you might see...

Fix Nginx Upstream Connection Refused in Proxy Pass