Docker Nginx 502 Bad Gateway: Memory Limit Fix
You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Cloudflare Wildcard Subdomain Page Rule Not Working
You set up a wildcard subdomain page rule in Cloudflare—like * .example.com/*—but it...
Common Causes of Nginx Configuration Test Failure
When you run nginx -t and see an error, it usually means a syntax mistake, a missing...
Windows 11 Update Stuck at 0% Due to Corrupt Files: Fixes
You start a Windows 11 update, and it hangs at 0% for minutes or hours. Corrupt system files are ...
How to Update Git Remote Origin URL
When a repository's remote URL changes—for example, after migrating to a new Git server or sw...
Cloudflare DNS Setup Propagation Not Completing: Fixes
You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...
Issue queue
SitemapGit SSL Certificate Verification Failed Local Issuer
Fix Chrome Sync Issues by Resetting
Enable Windows Defender Real-Time Protection: Step-by-Step
Common Syntax Errors in npm Build and How to Solve Them
How to Resolve Chrome Certificate Error on macOS
Python Virtual Environment Won't Activate macOS
How to Give VS Code Write Access to Files
Windows Security Not Working After Reset: Troubleshooting Guide
How to Rebuild Windows Search Index
Fix Docker Container Exiting Right After Start
Resolving 'Permission denied' When Using pip --user
Nginx Upstream Connection Refused: Diagnosis and Fixes
Fix Chrome Sync Issues by Resetting
Enable Windows Defender Real-Time Protection: Step-by-Step
Common Syntax Errors in npm Build and How to Solve Them
How to Resolve Chrome Certificate Error on macOS
Python Virtual Environment Won't Activate macOS
How to Give VS Code Write Access to Files
Windows Security Not Working After Reset: Troubleshooting Guide
How to Rebuild Windows Search Index
Fix Docker Container Exiting Right After Start
Resolving 'Permission denied' When Using pip --user
Nginx Upstream Connection Refused: Diagnosis and Fixes