Registro IPv4
host: plus21kr.com
class: IN
ttl: 2797
type: A
ip: 202.31.187.204

Servidores DNS Principal (mname) y Secundario (rname)
host: plus21kr.com
class: IN
ttl: 3600
type: SOA
mname: ns3.uhost.co.kr
rname: hostmaster.plus21kr.com
serial: 0
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600