Registro IPv4
host: descargarlibrosgratis.biz
class: IN
ttl: 300
type: A
ip: 54.149.79.189

Registro IPv4
host: descargarlibrosgratis.biz
class: IN
ttl: 300
type: A
ip: 34.216.117.25

Servidores DNS Principal (mname) y Secundario (rname)
host: descargarlibrosgratis.biz
class: IN
ttl: 1800
type: SOA
mname: launch1.spaceship.net
rname: support.spaceship.com
serial: 1785902916
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 3600