How does share screen actually work? Can a staff member explain to me how share screen using P2P uses somehow LAN? Again I have a very good firewall and I was thinking it was my fault for the share screen not working properly but apparently LAN ports needs to be not blocked in order for the share screen work properly, at least that’s what I found exploring my own settings… Now question is, does TS6 uses some sort of VPS or VPN to make the connection between 2 people?
To my knowledge it is just your run-of-the-mill hole punching, see Hole punching (networking) - Wikipedia
I haven’t checked which STUN servers they use. Either they implemented it into the TS6 server which I doubt, they host their own central one, or they rely on something like the publicly hosted google ones.
For connection establishment, we are using WebRTC ICE, which deals with NAT hole punching if one party is behind a more restricted NAT. So you are absolutely correct with your reply. We are using centralized (hosted by us) STUN servers for external IP discovery.
This connection establishment can fail in certain edge cases. You can read more at e.g. Interactive Connectivity Establishment - Wikipedia
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Is there a list of IPs that need to be allowed available somewhere? I’m hosting a number of services, and geoblock problematic areas. Ran in to a problem when attempting to connect to streams, and was unable to connect. Turns out geoblocking Belgium was the problem… Allowing the blocked IPs through ended up solving it, but especially being in the US, “Unblock Belgium” definitely wasn’t high up on my troubleshooting list… Having a list of IPs that need to be allowed (not just for streaming, but in general) would be ideal. I have a hunch the 2 IPs that I have aren’t the only ones that need to be allowed through.
We host 2 STUN servers for P2P IP discovery. turn.teamspeak.com and turn2.teamspeak.com (both solely having STUN enabled even though the name suggests otherwise).
Other than that, it should work without whitelisting anything else.
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