Registro IPv4
host: b4-health.net
class: IN
ttl: 6194
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: b4-health.net
class: IN
ttl: 2593
type: SOA
mname: ns1-33.azure-dns.com
rname: azuredns-hostmaster.microsoft.com
serial: 1
refresh: 3600
retry: 300
expire: 2419200
minimum-ttl: 300