Knowledge base for software setup, errors, and daily tool work.

How to Generate a Cloudflare Origin Certificate

If you're using Cloudflare as a reverse proxy, you may want to encrypt traffic between your s...

Cloudflare 522 Error: Analyzing Server Logs for a Fix

You're seeing a 522 error from Cloudflare. That means Cloudflare connected to your origin ser...

Fix Nginx 502 Bad Gateway Docker Permission Denied

When running Nginx as a reverse proxy in a Docker environment, a 502 Bad Gateway error often poin...

Fix 'port already allocated' for Nginx in Docker Compose

You're starting your Docker Compose setup with Nginx, and you see "port is already alloca...

Docker Compose Environment Variable Not Updating? Fix It

Fix npm install ENOENT Error: No Such File or Directory

When you run npm install and see an error like ENOENT: no such file or directo...