Registro IPv4
host: railab.co.kr
class: IN
ttl: 3600
type: A
ip: 110.45.211.133

Servidores DNS Principal (mname) y Secundario (rname)
host: railab.co.kr
class: IN
ttl: 3600
type: SOA
mname: win-q5981kn9cgc
rname: hostmaster
serial: 5
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600