Fix Docker Nginx 502 Bad Gateway Upstream Error
When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Enable Windows Defender Real-Time Protection in Windows 10
If Windows Defender real-time protection is off, your PC is more vulnerable to malware. You may s...
Cloudflare SSL Full vs Flexible: Troubleshooting Mixed Content & Errors
If your site shows broken padlocks, mixed content warnings, or SSL errors after changing Cloudfla...
Fix Git SSL Certificate Problem: Unable to Get Local Issuer
You run git clone https://example.com/repo.git and get:
fatal: unable to acc...
Fix npm install Permission Denied in CI/CD Pipelines
When your CI/CD pipeline fails with EACCES: permission denied during npm insta...
Fix Chrome ERR_CONNECTION_RESET Due to Proxy Settings
You're browsing in Chrome and suddenly pages won't load, showing ERR_CONNECTION_R...
Issue queue
SitemapCloudflare DNS Not Propagating? Here's How to Fix It
Resolve Docker Compose Port Already in Use
Troubleshoot Python Path Issue Windows 10
Fix Git Clone Connection Timed Out After 30 Seconds
Resolve 'Permission Denied' When Running source venv/bin/activate
How to Fix 'Running Scripts Disabled' in VS Code PowerShell
How to Fix 'Python Is Not Recognized' on Windows
Fix VSCode Git Authentication Failure with Bitbucket
Windows Defender Disabled by Malware: Recovery Steps
VS Code PowerShell Permission Denied Troubleshooting
Fix Windows 11 Update Stuck at 0% with Service Not Running
Windows Explorer Keeps Crashing? Try These Fixes
Resolve Docker Compose Port Already in Use
Troubleshoot Python Path Issue Windows 10
Fix Git Clone Connection Timed Out After 30 Seconds
Resolve 'Permission Denied' When Running source venv/bin/activate
How to Fix 'Running Scripts Disabled' in VS Code PowerShell
How to Fix 'Python Is Not Recognized' on Windows
Fix VSCode Git Authentication Failure with Bitbucket
Windows Defender Disabled by Malware: Recovery Steps
VS Code PowerShell Permission Denied Troubleshooting
Fix Windows 11 Update Stuck at 0% with Service Not Running
Windows Explorer Keeps Crashing? Try These Fixes