ServerBindInterface vs PreferredNetworkInterface in preferences.xml

Plex Media Server Plex Pass Betas
1

PMS Version 1.18.6.2368 on Ubuntu Server 18.04
My server has two network interfaces.
ens160 with a public IP
ens224 with a private IP

PMS is setup to listen only on ens160 (The public interface)
Everything works, but checking preferences.xml I can also see the variable ServerBindInterface with a value of eth0, variable I did not set manually.
Is ServerBindInterface an unused/leftover variable? Or it is still in use but somehow assigned a wrong value?
Checking https://support.plex.tv/articles/201105343-advanced-hidden-server-settings/ I cannot find any of those two variables.
The server was rebuild about 8 months ago with Ubuntu 18.04 from scratch, so zero chances for an eth0 relic from the past in network configuration.

2

Hi, yes that variable might be one left over. If you wish to remove it, first stop PMS, then backup your preferences.xml, then open it in an editor (such as “nano” to edit it to remove the old variable and value. Save your edit then start PMS again.

3

Removed ServerBindInterface and started the service.
The value did not re-appear in Preferences.xml

Thank you.