Registro IPv4
host: rctw.net
class: IN
ttl: 21979
type: A
ip: 220.135.105.12

Servidores DNS Principal (mname) y Secundario (rname)
host: rctw.net
class: IN
ttl: 7200
type: SOA
mname: admi177216.mercury.orderbox-dns.com
rname: rctw.net.gmail.com
serial: 2024110605
refresh: 7200
retry: 7200
expire: 172800
minimum-ttl: 38400