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 notesHow to Recover from a Detached HEAD in Git After a Rebase
You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...
Fixing Nginx 502 Bad Gateway in Docker WordPress Setups
If you're running WordPress in Docker behind an Nginx reverse proxy, a 502 Bad Gateway error ...
Fix npm install Permission Denied Errors on package.json
You run npm install and get a permission denied error that mentions package.js...
Fix git index.lock File Exists Error on Windows
If you see fatal: Unable to create 'index.lock': File exists. when running G...
Python Virtual Environment Activation Failed: Common Fixes
You've created a Python virtual environment, but when you try to activate it, nothing happens...
Issue queue
SitemapFix ERR_NAME_NOT_RESOLVED in Chrome: Network Troubleshooting Guide
Node Version Mismatch: Fix npm Build Errors
Fix Cloudflare 522 Error Firewall Blocking
VS Code Source Control Not Detecting Changes: Disable Git Fix
Set Node Version per Project with .nvmrc
How to Solve pip Permission Denied on Linux and macOS
Passing Env Vars to Docker Compose Build
Windows 11 Update Stuck at 0% – Clear SoftwareDistribution Folder
Pip Externally Managed Environment: What to Do
Chrome Extensions Not Syncing? Here's How to Fix It
Checklist for Fixing Shared Folder Access in Windows
How to Use SFC /Scannow for Windows 11 Blue Screen
Node Version Mismatch: Fix npm Build Errors
Fix Cloudflare 522 Error Firewall Blocking
VS Code Source Control Not Detecting Changes: Disable Git Fix
Set Node Version per Project with .nvmrc
How to Solve pip Permission Denied on Linux and macOS
Passing Env Vars to Docker Compose Build
Windows 11 Update Stuck at 0% – Clear SoftwareDistribution Folder
Pip Externally Managed Environment: What to Do
Chrome Extensions Not Syncing? Here's How to Fix It
Checklist for Fixing Shared Folder Access in Windows
How to Use SFC /Scannow for Windows 11 Blue Screen