Registro IPv4
host: sdcenter.or.kr
class: IN
ttl: 79216
type: A
ip: 222.239.248.201

Servidores DNS Principal (mname) y Secundario (rname)
host: sdcenter.or.kr
class: IN
ttl: 79216
type: SOA
mname: sdcenter.or.kr
rname: root.sdcenter.or.kr
serial: 42
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 86400