Registro IPv4
host: bibliotecavirtualdefensa.es
class: IN
ttl: 600
type: A
ip: 193.33.2.131

Servidores DNS Principal (mname) y Secundario (rname)
host: bibliotecavirtualdefensa.es
class: IN
ttl: 600
type: SOA
mname: ns01.mde.es
rname: dnsadm.mde.es
serial: 2018121521
refresh: 86400
retry: 7200
expire: 2592000
minimum-ttl: 180