Fix Nginx 502 Bad Gateway on Docker Ubuntu
You're running Nginx as a reverse proxy inside Docker on Ubuntu, and suddenly you see
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Set Timeout for Python Requests
When using the Python requests library, a common issue is that a request can hang in...
VS Code Source Control Not Detecting Changes: Disable Git Fix
If VS Code stops showing file changes in the Source Control panel, Git integration may be stuck o...
Fix Windows 11 Blue Screen After Update Using Compatibility Mode
You installed a Windows 11 update, rebooted, and hit a blue screen. This often happens when a dri...
Fix VS Code IntelliSense Not Working in Remote SSH
You connect to a remote server via VS Code Remote SSH, start editing code, and notice IntelliSens...
Recover Lost Changes After Git Detached HEAD
You've made several edits, then checked out an old commit or tag, and now Git says you're...
Issue queue
SitemapFix Chrome High Memory Usage on Windows 10
Docker Container Exits Immediately: Fix with Restart Policy
Resolve Error 0x80070005 in Windows Update
Fix Chrome Black Screen on Intel Graphics with Hardware Acceleration
ERR_NAME_NOT_RESOLVED Chrome Safe Mode Troubleshooting
Nginx 502 Error with Docker WordPress: Fixes
How to Fix Node.js Heap Out of Memory Error
Pre-Merge Checklist to Avoid Git Conflicts
Nginx Configuration Test Failed: Duplicate Listen Fix
npm Build Fails: PostCSS Troubleshooting
How to Fix npm install Permission Denied Error
Troubleshooting Nginx -t Upstream Failures
Docker Container Exits Immediately: Fix with Restart Policy
Resolve Error 0x80070005 in Windows Update
Fix Chrome Black Screen on Intel Graphics with Hardware Acceleration
ERR_NAME_NOT_RESOLVED Chrome Safe Mode Troubleshooting
Nginx 502 Error with Docker WordPress: Fixes
How to Fix Node.js Heap Out of Memory Error
Pre-Merge Checklist to Avoid Git Conflicts
Nginx Configuration Test Failed: Duplicate Listen Fix
npm Build Fails: PostCSS Troubleshooting
How to Fix npm install Permission Denied Error
Troubleshooting Nginx -t Upstream Failures