Servidores DNS Principal (mname) y Secundario (rname)
host: fieldsartgallery.com
class: IN
ttl: 90
type: SOA
mname: fake-ns.fieldsartgallery.com
rname: fake-tech.fieldsartgallery.com
serial: 1
refresh: 60
retry: 60
expire: 60
minimum-ttl: 60