Servidores DNS Principal (mname) y Secundario (rname)
host: nanofuture.biz
class: IN
ttl: 21600
type: SOA
mname: dns1.p01.nsone.net
rname: parked.nsone.net
serial: 1680394973
refresh: 43200
retry: 7200
expire: 1209600
minimum-ttl: 86400