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 notesChrome Startup Crash Due to Sandboxing: How to Fix
You open Chrome, it starts to load, then crashes before the window fully appears. This can happen...
Fix VS Code Source Control Not Detecting Changes After Branch Switch
After switching branches in Git, VS Code's Source Control view sometimes stops showing change...
Fix 'Permission Denied' in VS Code When File Isn't Read-Only
You're editing a file in VS Code and get a 'Permission denied' error when saving, eve...
Fix Nginx 502 Bad Gateway: Upstream Connection Refused
If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...
Python Requests: Setting Timeout for POST Requests
When your Python script makes a POST request to an external API or web service, a slow or unrespo...
Issue queue
SitemapWhat Git Merge Conflict Markers Mean and How to Fix Them
Check DNS Propagation with Cloudflare Tools
Fix Remote Desktop Not Working After Windows Update
Fix Windows Update Error 0x80070002 on Windows 11
Python Command Not Found in Windows Terminal: Fixes
Resolve npm Global Install Permission Errors
Fix Python Dependency Conflicts in pyproject.toml
Fix DNS Probe Finished NXDOMAIN in Edge Browser
Resolving Python Dependency Hell
Avoid Hanging Scripts with Python Requests Timeout
Chrome Sync Not Working on Windows 10: Quick Fixes
Stop VS Code Autocomplete From Disappearing
Check DNS Propagation with Cloudflare Tools
Fix Remote Desktop Not Working After Windows Update
Fix Windows Update Error 0x80070002 on Windows 11
Python Command Not Found in Windows Terminal: Fixes
Resolve npm Global Install Permission Errors
Fix Python Dependency Conflicts in pyproject.toml
Fix DNS Probe Finished NXDOMAIN in Edge Browser
Resolving Python Dependency Hell
Avoid Hanging Scripts with Python Requests Timeout
Chrome Sync Not Working on Windows 10: Quick Fixes
Stop VS Code Autocomplete From Disappearing