Registro IPv4
host: 91m2.com
class: IN
ttl: 587
type: A
ip: 47.122.49.17

Servidores DNS Principal (mname) y Secundario (rname)
host: 91m2.com
class: IN
ttl: 588
type: SOA
mname: dns3.hichina.com
rname: hostmaster.hichina.com
serial: 2026082616
refresh: 3600
retry: 1200
expire: 86400
minimum-ttl: 600