Servidores DNS Principal (mname) y Secundario (rname)
host: wellpoint.org
class: IN
ttl: 3600
type: SOA
mname: vaash-wdc04-dns-22.internal.das
rname: hostmaster.domain53hosting.com
serial: 4
refresh: 86400
retry: 7200
expire: 3600000
minimum-ttl: 900