Servidores DNS Principal (mname) y Secundario (rname)
host: blog-dominiotemporario.com.br
class: IN
ttl: 1800
type: SOA
mname: ns1.host.uol.com.br
rname: ns1.host.uol.com.br
serial: 2015020500
refresh: 43200
retry: 3600
expire: 604800
minimum-ttl: 1800