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

Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix Cloudflare Wildcard Subdomain Not Working with WordPress

You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) expecting all subdomains to ...

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...