Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Bypass pip's Externally Managed Environment Error
When you run pip install on certain Linux distributions (like Debian 12, Ubuntu 23.0...
Configure Git HTTP Timeout to Avoid Clone Failures
If your Git clone or fetch operations time out with errors like fatal: unable to access ...
Fix Windows Search Index Not Indexing New Files
If you've added new files to a folder but Windows Search can't find them, the search inde...
Setup Cloudflare Origin Certificate for Nginx
If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...
Python Virtual Environment Activation Failed: Common Fixes
You've created a Python virtual environment, but when you try to activate it, nothing happens...
Issue queue
SitemapHow to Fix Cloudflare Error 522 Connection Timed Out
Taskbar Icons Disappeared After Signing Out: Fix Guide
Windows 11 Update Stuck at 0%: Corrupt Files Fix
Docker Container Killed by OOM: Diagnosis
Fix VS Code Terminal Not Opening with Conda Environment
Windows npm Build Failed: Quick Fixes
Resolving 'index.lock File Exists' in Git
Docker Disk Full After Pulling Image: How to Fix
Windows 10 Python venv Troubleshooting Guide
Fix Chrome Not Responding on Startup – Practical Steps
Docker Container Exits Right After Starting: How to Fix
Rebuild Windows Search Index Without Losing Data
Taskbar Icons Disappeared After Signing Out: Fix Guide
Windows 11 Update Stuck at 0%: Corrupt Files Fix
Docker Container Killed by OOM: Diagnosis
Fix VS Code Terminal Not Opening with Conda Environment
Windows npm Build Failed: Quick Fixes
Resolving 'index.lock File Exists' in Git
Docker Disk Full After Pulling Image: How to Fix
Windows 10 Python venv Troubleshooting Guide
Fix Chrome Not Responding on Startup – Practical Steps
Docker Container Exits Right After Starting: How to Fix
Rebuild Windows Search Index Without Losing Data