Registro IPv4
host: sewontech21.co.kr
class: IN
ttl: 3600
type: A
ip: 121.88.250.13

Servidores DNS Principal (mname) y Secundario (rname)
host: sewontech21.co.kr
class: IN
ttl: 3600
type: SOA
mname: ns1.viaweb.co.kr
rname: root.ns1.viaweb.co.kr
serial: 1
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600