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Is it feasible to run a TURN server behind NAT? (lemmy.ca)

submitted 7 months ago* (last edited 7 months ago) by hackysphere@lemmy.ca to c/selfhosted@lemmy.world

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I am running a defederated local Matrix server, and I need to set up calls. From what I can tell, the "legacy" calls require a STUN and TURN server, and the new MatrixRTC standard seems to require them as well for Livekit to work. However, I do not want to expose anything out to the public internet, as I want everything to be behind NAT for local access only (all of the clients for the server will also be behind the NATted network). I also have Tailscale running on my servers, and it would be useful if I would be able to connect to the TURN server even when not in the network. Is there a way to get STUN/TURN to work in this situation? It seems that all the servers expect to have public network access.

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[–] hackysphere@lemmy.ca 2 points 7 months ago* (last edited 7 months ago)

I live in a rural area, so my only options are dealing with a mobile hotspot for everything or getting satellite internet for more than double the price.

It's also not worth it for me to switch internet providers just to have calls on my Matrix server work