Registro IPv4
host: hellotw.com
class: IN
ttl: 90
type: A
ip: 111.202.50.12

Servidores DNS Principal (mname) y Secundario (rname)
host: hellotw.com
class: IN
ttl: 3600
type: SOA
mname: dns1.zdnscloud.info
rname: ganjin.cnr.cn
serial: 666
refresh: 3600
retry: 3600
expire: 3600
minimum-ttl: 3600