Servidores DNS Principal (mname) y Secundario (rname)
host: shinera.ru
class: IN
ttl: 3600
type: SOA
mname: ns1.netangels.ru
rname: hostmaster.netangels.ru
serial: 1721737535
refresh: 3600
retry: 1800
expire: 7200
minimum-ttl: 3600