How is Plex making it outside?

Plex Media Server Remote Access
1

Server Version#: 4.141.0
Player Version#: Various

I just changed firewalls.

I have an account with a dynamic dns host so family can access my Plex server by fqdn and it has been working for years. On the old firewall I had firewall rules allowing access to Plex on its usual port.

I have NOT yet configured port forwarding on the new firewall, but I am currently streaming to two remote clients, and the Plex server is showing the streams.

How did these remote clients access Plex if port forwarding is not configured, and is this a risk?

Thanks.

2

Most likely via a relay

Please see: https://support.plex.tv/articles/216766168-accessing-a-server-through-relay/

3

Your new router could also have UPnP enabled, so your Plex instance automatically set up the port forward.

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