Connecting to a Broker - Non Local - MQTT

So, basically i have 2 raspberry pi. One with Facial Recognition successfully sending the name of the face recognized to the broker.

On my second Pi, i am running Node-red and want to subscribe to this.

Any idea on how to do this?

In sever is it the Broker ID -
or that raspberry pi's IP Address

It would be the ip address where the broker is running.

Literally just got it going, thanks

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