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
BrowseCloudflare DNS Setup Propagation Not Completing: Fixes
You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...
Remove Large Files from Git History
If your Git repository is bloated because a large file was committed and later removed, the file ...
Fix ERR_NAME_NOT_RESOLVED in Chrome: Proxy Settings Guide
If you see ERR_NAME_NOT_RESOLVED in Chrome, it usually means the browser can'...
How to Disable Shell Extensions to Stop Explorer Restarting
If File Explorer keeps restarting, crashing, or freezing on its own, a misbehaving shell extensio...
Chrome Won't Open After Update: Step-by-Step Fix
You updated Chrome, and now it won't open—no window, no error, just nothing. This is a common...
Fix Chrome Certificate Error: Invalid Authority with Proxy Settings
Windows Update Error 0x800f081f – Media Creation Tool Fix
Fixing Chrome STATUS_ACCESS_VIOLATION from Extensions
Identify Memory-Hungry Tabs and Extensions in Chrome
Troubleshooting Chrome Web Store Extension Loading Issues
Windows 11 Explorer Keeps Restarting: How to Fix
Stop Automatic Repair Loop Caused by Explorer Crashes
How to Fix 'Unable to Get Local Issuer Certificate' in Git
Resolve Cloudflare SSL Permission Denied Error
How to Fix RDP Error Code 0x80004005
Windows Update Error 0x800f081f – Media Creation Tool Fix
Fixing Chrome STATUS_ACCESS_VIOLATION from Extensions
Identify Memory-Hungry Tabs and Extensions in Chrome
Troubleshooting Chrome Web Store Extension Loading Issues
Windows 11 Explorer Keeps Restarting: How to Fix
Stop Automatic Repair Loop Caused by Explorer Crashes
How to Fix 'Unable to Get Local Issuer Certificate' in Git
Resolve Cloudflare SSL Permission Denied Error
How to Fix RDP Error Code 0x80004005