I am finding it hard to understand how notifications are done in a distributed deployment. Let's say a master and a client in a top-down config sync configuration, connection direction from master to client.
Assuming the master sends the notifications, where should they be applied to such monitored hosts and services that are part of the client zone?
On the master or the client?
And what about the notification command and user definitions? Do they need to be synced to the client?