Registro IPv4
host: yo.io
class: IN
ttl: 21600
type: A
ip: 52.60.87.163

Servidores DNS Principal (mname) y Secundario (rname)
host: yo.io
class: IN
ttl: 14400
type: SOA
mname: ns1.101domain.com
rname: ADMIN.yo.io
serial: 2018010102
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600