Servidores DNS Principal (mname) y Secundario (rname)
host: wpcloud.net
class: IN
ttl: 8929
type: SOA
mname: wns01.gmoserver.jp
rname: hostmaster.wpcloud.net
serial: 1750973473
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600