I have a Pro subscription and two networks I want to use NextDNS from. I have a no-ip DDNS hostname for each network, one that maps to a Raspberry Pi that I am running the no-ip client on and another that maps to a Synology NAS that I have also configured no-ip DDNS on. That's all working fine.

My question has to do with the linked-ip setting. I want both networks to be associated with my NextDNS account, but there's only one address I can specify for linked-ip. I have configured it to point to the DDNS name for one of my networks. How do I get the second network recognized? Do I need two NextDNS accounts, or what?