Let’s say I setup some subdomains and then point them to my home server via Cloudflare tunnel.
If I use one of those subdomains from my personal PC on the same network as my home server, to watch a movie for example, is all of that traffic going out to the internet and then back? Or does all the traffic stay internal once the connection has been made?
The (wildcard) certs are the same, as it’s what caddy is pulling via API. You can either build the cloudflare module into caddy via docker build, or use a prebuilt version. It doesn’t create two separate certs for local and remote.
It works really well for me, and is actually the most straight forward way to get valid certs for internal services I’ve found. Since they’re wildcard, my internal domains don’t get exposed through certificate authorities.