Fix Nginx 502 Bad Gateway with Docker and PHP-FPM
You have a Docker setup with Nginx proxying to a PHP-FPM container, and you're getting a 502 ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesVS Code Terminal Blank Screen: Quick Fixes
You open the integrated terminal in VS Code, but instead of a prompt, you get a blank or black sc...
Fixing Cloudflare Wildcard Subdomain Permissions Denied Errors
You set up a wildcard DNS record in Cloudflare, but requests to subdomains return a permissions d...
Fix Windows 11 Blue Screen After Update Stuck in Restart Loop
After a Windows 11 update, your PC may show a blue screen error and then restart repeatedly, neve...
Fixing NGINX Upstream Connection Refused SSL Errors
When NGINX logs upstream connection refused for an SSL backend, it usually means the...
Fix Git 'index.lock file exists' Error
If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...
Issue queue
SitemapGit index.lock File Exists: Causes and Solutions
Resolve pip Externally-Managed-Environment for venv on Linux
Git Merge Refusing Unrelated Histories Solution
Chrome Access Violation Error – Startup Fixes
Fix Node Version Errors When Installing Packages
Git SSL Certificate Problem: No Certificate Store Fix
How to Resolve Windows Update Error 0x80070002
VS Code Terminal Won't Open PowerShell Fix
Windows 11 Update Causing Blue Screen? Try a Clean Boot
Handling Git Merge Conflicts in Lockfiles
Resolve Cloudflare 521 Error with DNS Fix
VS Code Terminal Won't Open Troubleshooting Guide
Resolve pip Externally-Managed-Environment for venv on Linux
Git Merge Refusing Unrelated Histories Solution
Chrome Access Violation Error – Startup Fixes
Fix Node Version Errors When Installing Packages
Git SSL Certificate Problem: No Certificate Store Fix
How to Resolve Windows Update Error 0x80070002
VS Code Terminal Won't Open PowerShell Fix
Windows 11 Update Causing Blue Screen? Try a Clean Boot
Handling Git Merge Conflicts in Lockfiles
Resolve Cloudflare 521 Error with DNS Fix
VS Code Terminal Won't Open Troubleshooting Guide