Servidores DNS Principal (mname) y Secundario (rname)
host: pdvsa.com
class: IN
ttl: 21600
type: SOA
mname: pdvsa.com
rname: calderagn.pdvsa.com
serial: 2
refresh: 604800
retry: 86400
expire: 2419200
minimum-ttl: 604800

Registro IPv6
host: pdvsa.com
class: IN
ttl: 17928
type: AAAA
ipv6: ::1