Firewall Rules iptables

Plex Media Server Desktops & Laptops
1

On a new install now looking at firewall for my Linux Server.
I have put the INPUT chain into DROP for security reasons (I guess).

In the beginning I could not access the Plex GUI, which is normal.
Then added 32400 TCP to the accept INPUT chain. Then the portal works again.

However, I can still NOT open up my libraries for some reason.
I’ve tried putting in all ports that were on the official support page to no avail.

When putting the INPUT chain back to ACCEPT it suddenly works again, which means the official guide is not specifying random ports needed for using Plex? I’m talking about LOCAL access here, not remote access.

Als noticed below on my open ports, what are these?

Plex\x20M 13167 plex 61u IPv4 270789 0t0 TCP 127.0.0.1:32401 (LISTEN)
Plex\x20S 13207 plex 8u IPv4 270140 0t0 TCP 127.0.0.1:38379 (LISTEN)
Plex\x20T 13263 plex 13u IPv4 269215 0t0 TCP 127.0.0.1:32600 (LISTEN)
Plex\x20S 13291 plex 4u IPv4 269289 0t0 TCP 127.0.0.1:46633 (LISTEN)

2

FYI, rules:

Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT tcp – anywhere anywhere tcp dpt:32400

3
4

Thanks @ChuckPa, I had this page already.
Seems a flush and re-entry helped.

What are those other ports I mentioned for?

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