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

Docker Compose Environment Variable Not Set in Dockerfile

You set an environment variable in your docker-compose.yml file, but when you try to...

How to Check if Cloudflare DNS Propagation Is Complete

When you change a DNS record in Cloudflare, propagation doesn't happen instantly. Even with C...

Fix Cloudflare Wildcard Subdomain Issues After SSL Change

If your wildcard subdomains (e.g., *.example.com) stop working after you change SSL/TLS settings ...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Git Clone SSL Connection Timeout: Causes and Fixes

When you run git clone over HTTPS and see an error like Failed to connect to g...