This is a question mostly for the sake of trying to learn more about how self-hosting works, and it is not vital that I resolve this. But if anyone wants to help me understand this, I would greatly appreciate it.
I have a media server running at home with certain Docker containers (Jellyfin, Navidrome and Audiobookshelf currently). I have not exposed these services to the internet, so they are currently only accessible on my home network, which is all I need for the time being. The server itself is connected to an external VPN provider as there may or may not be some torrenting involved at some point. Let’s say the name of the server is mediaserver.
From my laptop connected to the same network, I can access all these services through http://mediaserver.local: or http://:, while connected via the same VPN provider on the laptop also. On my cell phone (running CalyxOS), I am unable to do so. I need to disable VPN in order to access the services.
What is the difference between my laptop connected via VPN and my phone doing the same thing, both connected to my home network. I didn’t actually think the VPN would come in to play before making requests outside my home network, but that’s probably just me being ignorant.
Not an expert but my first thought is check DNS. I would make sure both devices are using the same DNS resolver and are resolving the hostname correctly.
This is probably where my lack of knowledge in networking shines through more than ever, but I kinda thought that local IPs would be handled locally and not depend on which DNS servers I use? But I guess that if VPN is active and has not been explicitly told to allow local connections through split tunneling, then it actually do make that request with whatever DNS server I use, which obviously couldn’t resolve some random local hostname?