Checklists for software errors, setup, and tool workflows.

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Fix Nginx Upstream Connection Refused Socket Error

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Fix Nginx 502 Bad Gateway with Docker Socket
You have an Nginx container proxying requests to another container via the Docker socket, and you...

Fixing Python Memory Errors When Processing Large Files on 64-bit
If you're hitting a MemoryError in Python while reading or processing a large fi...

Fix Nginx Configuration Test Failure from Rewrite Rules
You run nginx -t and get an error. The log points to a rewrite rule. This is common ...

Fix 'Python Command Not Found' in Git Bash on Windows
When running Python in Git Bash on Windows, you may see bash: python: command not found

Restore Windows Defender Real-Time Protection After Malware Disables It
If your Windows Defender real-time protection has been turned off and you suspect malware is the ...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Nginx Upstream Connection Refused Socket Error

Fix Nginx 502 Bad Gateway with Docker Socket

Fixing Python Memory Errors When Processing Large Files on 64-bit

Fix Nginx Configuration Test Failure from Rewrite Rules

Fix 'Python Command Not Found' in Git Bash on Windows

Restore Windows Defender Real-Time Protection After Malware Disables It

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