Registro IPv4
host: sdflex.kr
class: IN
ttl: 149
type: A
ip: 183.111.169.124

Servidores DNS Principal (mname) y Secundario (rname)
host: sdflex.kr
class: IN
ttl: 21600
type: SOA
mname: ns1.mylinux.co.kr
rname: root.sdflex.kr
serial: 2018030904
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600