Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesSetup Cloudflare Origin Certificate for Nginx
If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...
Fix Docker Build Context Canceled in Git Bash on Windows
If you're running Docker commands from Git Bash on Windows and see an error like contex...
Cloudflare SSL Full Strict: Fix Origin Certificate Errors
If you've set Cloudflare's SSL/TLS encryption mode to Full (Strict) and started seeing er...
Why Windows Security App Keeps Crashing and How to Fix It
If the Windows Security app keeps crashing when you open it, you're not alone. This issue oft...
Chrome Extensions Not Loading: Common Causes and Fixes
You open Chrome and notice your extensions are missing from the toolbar, or they appear greyed ou...
Issue queue
SitemapHow to Fix Windows Defender Permission Denied Error
Fix Windows 11 Upgrade Assistant Not Completing
Fix Docker Pull Access Denied in CI/CD Pipeline
Fix Python Dependency Conflict Error Code 1
VS Code Terminal Not Opening with Node.js Fix
Docker Compose: Fix Environment Variables with Special Chars
Fix Docker Nginx 502 Bad Gateway Upstream Error
Resolve Cloudflare 521 Origin Connection Error
Docker Access Denied Error: How to Resolve
Resolve 'Credentials Did Not Work' RDP Error
Resolving node-sass build failed Python not found
Debugging Docker Compose Variable Issues
Fix Windows 11 Upgrade Assistant Not Completing
Fix Docker Pull Access Denied in CI/CD Pipeline
Fix Python Dependency Conflict Error Code 1
VS Code Terminal Not Opening with Node.js Fix
Docker Compose: Fix Environment Variables with Special Chars
Fix Docker Nginx 502 Bad Gateway Upstream Error
Resolve Cloudflare 521 Origin Connection Error
Docker Access Denied Error: How to Resolve
Resolve 'Credentials Did Not Work' RDP Error
Resolving node-sass build failed Python not found
Debugging Docker Compose Variable Issues