Forward Nagios information to other Nagios

Nagios Nagios Configuration support
1

I have two Nagios’s set up in two different towns (1 and 2). I want to view all this data on the Nagios of town 1, but I don’t want to change all the configs for town 2. Is there a way that I can forward all the data that Nagios 2 takes and send it to Nagios 1?

Thanks in advance.

2

VPN to the Nagios server of town 1 and access the UI.

3

not in a trivial way. you need to forward the data, set the checks up on the local server as passive checks, etc etc