Registro IPv4
host: katu.or.kr
class: IN
ttl: 90
type: A
ip: 13.209.172.237

Servidores DNS Principal (mname) y Secundario (rname)
host: katu.or.kr
class: IN
ttl: 900
type: SOA
mname: ns-880.awsdns-46.net
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400