atx - network
ATX installations can be linked together, to obtain a summarized view of your network statistics in every ATX admin.
To link two ATX installations together, you'll need to fill out this form on both installations.
network IPs - Fill out the outgoing IP of your servers.
If you don't know what this IP is, check the security logs of the other installation you're trying to link to.
This will show that an unknown public IP is being blocked. That's the outgoing IP of your other installation.
verification keys - These 2 keys are used to encrypt the connection between your installations.
These keys need to be exactly the same on all installations.
The keys in this example are a good example of what a strong key looks like.
After linking sites together, go to menu - stats - main overview and scroll to the bottom of the page
to see the summary of the newly added site. You can of course also add the ATX installation you're currently using to its own network.