I have a self hosted server running yunohost that I use for a few services for my own use all of which require login to use so they’re safe enough.
However I’m increasingly uncomfortable with the fact that anyone can discover my home IP via my domain name. Especially if I decided to install something like Lemmy or Mastodon.
Yunohost installs dyndns as part of it’s setup but, aside from buying a fixed IP from a VPN provider that allows incoming connections I’m not sure what other options I have
I can’t change very much on the modem router either. I can forward ports but that’s about it.
I can add and manage new domains if necessary.
Any and all ideas welcome but, as you can guess from the fact I’m using yunohost, my networking knowledge is limited so please eli5 :)
Running a federated service on your home network is just a bad idea in general. You’re screaming to the world “hey look, there’s a server running potentially exploitable software here!” Even if you hide the IP behind a VPN.
For everything else not so public as a federated service, best bet is to install a WireGuard VPN server on your network. Set it to some random high number port. Undetectable, basically. Then when you’re away from home just connect to the VPN and it’s basically just like you’re still hooked to your WiFi at home.
If you are the only one using your services, sure but that’s way more of a PITA than 99% of users are going to put up with. Running a federated service is no different than running any other service - harden your network, use tunneling if you so desire (though if hosting media, the likes of Cloudflare are out of the question), have your local VLANs configured accordingly, and manage it like you would any other service. Hell, if you are super paranoid, go dual WAN as that’s likely cheaper than having a multiple VPS for your services or paying for the needed bandwidth on one (again, assuming media hosting)