Registro IPv4
host: alvogen.es
class: IN
ttl: 3071
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: alvogen.es
class: IN
ttl: 5585
type: SOA
mname: NS87.WORLDNIC.COM
rname: namehost.WORLDNIC.COM
serial: 112021008
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600