Servidores DNS Principal (mname) y Secundario (rname)
host: gurisat.com
class: IN
ttl: 300
type: SOA
mname: ns.dinahosting.com
rname: hostmaster.gurisat.com
serial: 2015031804
refresh: 3600
retry: 120
expire: 1209600
minimum-ttl: 300