Registro IPv4
host: yyapp.net
class: IN
ttl: 585909
type: A
ip: 149.104.1.104

Servidores DNS Principal (mname) y Secundario (rname)
host: yyapp.net
class: IN
ttl: 585909
type: SOA
mname: ns-743.awsdns-28.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400