Registro IPv4
host: realstudy.kr
class: IN
ttl: 90
type: A
ip: 52.84.66.126

Registro IPv4
host: realstudy.kr
class: IN
ttl: 90
type: A
ip: 52.84.66.80

Registro IPv4
host: realstudy.kr
class: IN
ttl: 90
type: A
ip: 52.84.66.6

Registro IPv4
host: realstudy.kr
class: IN
ttl: 90
type: A
ip: 52.84.66.69

Servidores DNS Principal (mname) y Secundario (rname)
host: realstudy.kr
class: IN
ttl: 73560
type: SOA
mname: ans1.hostcocoa.com
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400