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 ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Uninstall a Windows Update in Safe Mode After a Blue Screen
If you're seeing a blue screen after installing a Windows update, the update itself may be th...
Fix Windows Update Error 0x800f081f: Repair Tool Steps
If you see error 0x800f081f while installing a Windows update, it usually means the update packag...
Git Merge Conflict: Keep Both Files Instead of One
When you run git merge and get a conflict, Git stops and marks the conflicting files...
Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
How to Stop Chrome from Crashing at Launch
If Chrome crashes immediately when you try to open it, you're not alone. This usually happens...
Issue queue
SitemapChrome NET::ERR_CERT_AUTHORITY_INVALID Troubleshooting
Fix Black Screen in Chrome on macOS
Fix Git Authentication Failed in VS Code on Linux
Troubleshoot Cloudflare Origin Cert Permission Errors
Git Unrelated Histories Permanent Fix
Windows 11 Network Reset Caused No Internet – How to Fix
How to Fix Unverified Breakpoints in VSCode
Cannot Access Network Share in Windows 10/11
Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix
How to Resolve Firefox Secure Connection Issues
Troubleshooting Windows 11 Blue Screen After Update
Python MemoryError: Processing Large Files Step by Step
Fix Black Screen in Chrome on macOS
Fix Git Authentication Failed in VS Code on Linux
Troubleshoot Cloudflare Origin Cert Permission Errors
Git Unrelated Histories Permanent Fix
Windows 11 Network Reset Caused No Internet – How to Fix
How to Fix Unverified Breakpoints in VSCode
Cannot Access Network Share in Windows 10/11
Nginx 502 Bad Gateway in Docker PHP-FPM: How to Fix
How to Resolve Firefox Secure Connection Issues
Troubleshooting Windows 11 Blue Screen After Update
Python MemoryError: Processing Large Files Step by Step