Servidores DNS Principal (mname) y Secundario (rname)
host: puntfresc.com
class: IN
ttl: 300
type: SOA
mname: nex-dnsaut-01-v.datacenter.nexica.com
rname: sat.nexica.com
serial: 121
refresh: 7200
retry: 7200
expire: 2592000
minimum-ttl: 300