I know Plex uses AWS for services. I was hoping to narrow down the scope of what they use so I don’t have open my firewall to the entire AWS IP EC2 range. (532 subnets or so)
I know it was discussed years ago here: Where are PLEXs Public IP Addresses?
Are they bound to a specific region? US only?
Plex provides a link to its list of public IP addresses at the bottom of this support article (under IPs Being Blocked):
Here’s the actual link as well:
https://s3-eu-west-1.amazonaws.com/plex-sidekiq-servers-list/sidekiqIPs.txt
Wow. That is flipping amazing. That just reduced my list from 530 to 6 or so. And all Plex features will work as expected before?
Yes, to my knowledge, you should retain the full feature set. But full disclosure, I don’t use this list. And bear in mind that if you want to access the server remotely, you still need to poke holes in your firewall for all the remote clients which will be accessing your server.
However… keep in mind that’s only the Plex side of things.
If you have remote clients and lock down your firewall to only those IPs, you will at best get an indirect / relay connection when playing stuff from outside your home network (with a chance of not getting a connection at all).
Oops, I was editing my post to add that as you were composing yours.
I suppose that means it’s getting time for me to drop off (or fall asleep in front of my monitor and missing out updated posts)
Ha! It probably means I should have remembered to include it the first time 
.
Are remote users all relayed through AWS?
My goal is to permit as few as possible. I have geo location locked down for my country. So if I permit those Plex IPs, then anytime I’m traveling within my country, I should be fine. (geolocaton list obviously being current)
No. Plex establishes a direct connection between your server and the client.
Only if that fails it attempts an “indirect connection” (limited to 1 Mbit/s max; 2 Mbit/s for Plex Pass users). That indirect connection goes through a Plex server.
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