Registro IPv4
host: 3dx.us
class: IN
ttl: 869
type: A
ip: 208.91.197.194

Servidores DNS Principal (mname) y Secundario (rname)
host: 3dx.us
class: IN
ttl: 870
type: SOA
mname: DNS105.REGISTER.COM
rname: root.REGISTER.COM
serial: 120082807
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600