Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Nginx Redirect Loop: Step-by-Step Troubleshooting
If you're seeing a redirect loop error (ERR_TOO_MANY_REDIRECTS) in your browser, Nginx is cau...
Docker Desktop Engine Not Responding: Practical Fixes
You click Start in Docker Desktop, the whale icon spins, but nothing happens — o...
Fix Git SSL Certificate Problem Unable to Get Local Issuer on Ubuntu
When you see git SSL certificate problem: unable to get local issuer certificate on ...
How to Reset Windows Security App Settings
If the Windows Security app isn't opening, showing errors, or behaving oddly, resetting its s...
Fix VSCode IntelliSense Not Working with TypeScript
You open a TypeScript file in VSCode, start typing, and get no autocomplete, no hover info, no er...
Topic paths
Quick titles
Windows Shared Folder Access Registry FixRemove Malware Causing Chrome Access ViolationHow to Stop Nginx Redirect Loop Caused by RewriteHow to Restart Windows Update Service from Event ViewerHow to Fix 'python' Not Recognized After Reinstalling PythonPython ftplib Unicode Error Fix GuideEdge Sync Setting Not Showing UpResolve Git Clone Timeout Behind Proxy