Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Knowledge base for software setup, errors, and daily tool work.
Common intent:
Shortcut:
Latest knowledge entries
BrowseFix Windows Search Indexing High CPU Usage
If your computer's fan spins up and Task Manager shows Windows Search using a lot of CPU, the...
How to Fix Windows 11 Taskbar Icons Missing After Update
After a Windows 11 update, some users find that taskbar icons—like the Start button, search, or p...
Fix Git Merge Conflicts with Deleted Files
You're in the middle of a merge and git stops with a conflict. One side deleted a file, the o...
Fix npm run build Failed After Git Pull
You pulled the latest code from Git, ran npm run build, and got errors. This is a co...
Fix Cloudflare 521 Error Due to Server Overload
You see a Cloudflare 521 error page. The message says the web server is down. Often, this means y...
How to Fix nginx upstream connection refused on localhost
Git Merge Conflict Resolution Tool Setup Guide
Fix Windows Cannot Access Shared Folder with Password Protected Sharing
How to Purge Large Files from Git History
Fix Docker 'network not found' Error for Bridge Driver
Fix Chrome Black Screen After Disabling Hardware Acceleration
Fix Git SSL Certificate Problem: Unable to Get Local Issuer
Fix Docker Build Context Canceled on Windows 10
Angular Debugging: Breakpoints Skipped in VS Code
How to Fix Cloudflare 521 Error Due to Proxy Issues
Git Merge Conflict Resolution Tool Setup Guide
Fix Windows Cannot Access Shared Folder with Password Protected Sharing
How to Purge Large Files from Git History
Fix Docker 'network not found' Error for Bridge Driver
Fix Chrome Black Screen After Disabling Hardware Acceleration
Fix Git SSL Certificate Problem: Unable to Get Local Issuer
Fix Docker Build Context Canceled on Windows 10
Angular Debugging: Breakpoints Skipped in VS Code
How to Fix Cloudflare 521 Error Due to Proxy Issues