Registro IPv4
host: ru4.com
class: IN
ttl: 90
type: A
ip: 18.172.213.27

Registro IPv4
host: ru4.com
class: IN
ttl: 90
type: A
ip: 18.172.213.8

Registro IPv4
host: ru4.com
class: IN
ttl: 90
type: A
ip: 18.172.213.74

Registro IPv4
host: ru4.com
class: IN
ttl: 90
type: A
ip: 18.172.213.4

Servidores DNS Principal (mname) y Secundario (rname)
host: ru4.com
class: IN
ttl: 900
type: SOA
mname: ns-136.awsdns-17.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400