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....
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...
Fix Git 'index.lock' File Exists Error in SourceTree
If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...
Fix Nginx Upstream Connection Refused Error
When Nginx returns upstream connection refused in your error logs, it means Nginx tr...
Fix ERR_CONNECTION_RESET Caused by Firewall Blocking Chrome
If you see ERR_CONNECTION_RESET in Chrome, it usually means something interrupte...
VSCode Terminal Not Opening After Extension Install: Fix
You install a new extension in Visual Studio Code, restart or reload, and then the terminal panel...
Topic paths
Quick titles
Nginx 502 Bad Gateway Docker Container FixFix Python Permission Denied After pip UpgradeVS Code Terminal Not Using Python Virtual EnvironmentDocker Container Stops Instantly: Troubleshooting GuideHow to Fix Docker Build Context Canceled Permission DeniedResolve Chrome Access Violation Error macOSFix Git Clone Timeout Errors with HTTP TimeoutFix Nginx 502 Bad Gateway in Docker Containers