Checklists for software errors, setup, and tool workflows.

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Git Merge --allow-unrelated-histories: When and How to Use It

You run git merge and get an error: fatal: refusing to merge unrelated histories...

Fix Docker Nginx 502 Bad Gateway with MySQL
You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Checklist for Nginx Configuration Test Failure
When you run nginx -t and get a failure, the server won't reload or restart. Thi...

How to Fix an Nginx Redirect Loop: Step-by-Step
You load a site and the browser keeps spinning—eventually showing 'redirect loop' or '...

Fix Nginx 502 Bad Gateway with Docker Multiple Containers
If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...

Docker Network Not Found in Swarm Mode: Fixes & Causes
When running Docker in Swarm mode, you might see an error like network "xyz" not fo...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Git Merge --allow-unrelated-histories: When and How to Use It

Fix Docker Nginx 502 Bad Gateway with MySQL

Checklist for Nginx Configuration Test Failure

How to Fix an Nginx Redirect Loop: Step-by-Step

Fix Nginx 502 Bad Gateway with Docker Multiple Containers

Docker Network Not Found in Swarm Mode: Fixes & Causes

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