Servidores DNS Principal (mname) y Secundario (rname)
host: yhztsza.com
class: IN
ttl: 3600
type: SOA
mname: ns.dnsfamily.com
rname: hostmaster.dnsfamily.com
serial: 1083128256
refresh: 3600
retry: 600
expire: 86400
minimum-ttl: 600