Learned Geek Blog

You've seen the padlock in your browser. You know some sites are 'secure.' But what does it actually mean? What's being locked?

You set up SSL automation once and it worked great. Then you added a new domain and hit every gotcha you'd forgotten about. Here's the checklist.

Setting up free, automated SSL certificates for multiple domains using a Raspberry Pi, Certbot, and Cloudflare DNS.