Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Nginx Configuration Test: Missing Semicolon Error
When running nginx -t to test your configuration, you might see an error like:
Fix DNS Probe Finished NXDOMAIN After Windows Update
After a Windows update, some users see the error 'DNS_PROBE_FINISHED_NXDOMAIN' in Chrome ...
Cloudflare 522 Error: Server Response Time Troubleshooting
You're browsing a site and get a Cloudflare 522 error—'Connection timed out' or '...
Fix VS Code Terminal Not Opening WSL
You open VS Code, switch to the integrated terminal, select WSL as your default shell, and nothin...
How to Check Docker Disk Space Usage
If you run Docker for a while, you may notice your disk space shrinking. Images, containers, volu...
Issue queue
SitemapHow to Stop Windows Explorer Restarting Using SFC
VS Code Git Auth Failed on Linux – Fix
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Docker Build Canceled: How to Handle Large Contexts
Best Practices for Python Requests Timeout Configuration
How to Resolve 'Permission Denied' in VS Code Python Terminal
Chrome Invalid Authority Error Due to Proxy – Fix
Windows 11 Bluetooth Driver Fix Guide
Node.js Production OOM: Causes and Solutions
Windows Update 0x800f081f Troubleshooting Guide
Understanding and Fixing Git Non Fast Forward Error
Fix Windows Update Error 0x80070002 on Windows 10
VS Code Git Auth Failed on Linux – Fix
Fix DNS Probe Finished NXDOMAIN After Flushdns Fails
Docker Build Canceled: How to Handle Large Contexts
Best Practices for Python Requests Timeout Configuration
How to Resolve 'Permission Denied' in VS Code Python Terminal
Chrome Invalid Authority Error Due to Proxy – Fix
Windows 11 Bluetooth Driver Fix Guide
Node.js Production OOM: Causes and Solutions
Windows Update 0x800f081f Troubleshooting Guide
Understanding and Fixing Git Non Fast Forward Error
Fix Windows Update Error 0x80070002 on Windows 10