N+1 may overflow; using N-1 is more robust. Also, I think this can easily be implemented; you don’t need 4B hosts, just 4B DNS entries, and those, you can crea

N+1 may overflow; using N-1 is more robust. Also, I think this can easily be implemented; you don’t need 4B hosts, just 4B DNS entries, and those, you can create with a single wildcard entry (https://en.wikipedia.org/wiki/Wildcard_DNS_record https://en.wikipedia.org/wiki/Wildcard_DNS_record)