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?
Depends on the server obviously, but most will pass off their local once the initial handshake is made.
Once that is done, DNS isnt relevant anymore.
Edit: This is especially true for media (movies, TV) servers.
How does that work? Do they do something like what tailscale does to negotiate the connection? Can you point me to any doco for how that works?
Remember that we’re talking about a server on your local network, and a device on the local network to make the connection for the stream. We aren’t talking about streaming over the internet.
There is no need for tailscale or anything, this is a local connection. The only thing the public address is doing is the initial call to the server.
I get how that could work, but what services actually do that? Homeassistant can, but that needs to be setup explicitly for it to work.