Registro IPv4
host: topfnb.com
class: IN
ttl: 3526
type: A
ip: 27.255.91.130

Servidores DNS Principal (mname) y Secundario (rname)
host: topfnb.com
class: IN
ttl: 3600
type: SOA
mname: ns3.hostcenter.co.kr
rname: root.topfnb.com
serial: 2015072417
refresh: 21600
retry: 3600
expire: 604800
minimum-ttl: 3600