Registro IPv4
host: musictheory.com
class: IN
ttl: 3601
type: A
ip: 75.2.60.5

Servidores DNS Principal (mname) y Secundario (rname)
host: musictheory.com
class: IN
ttl: 3600
type: SOA
mname: dns1.name-services.com
rname: info.name-services.com
serial: 1776286526
refresh: 172800
retry: 900
expire: 1814400
minimum-ttl: 300