Servidores DNS Principal (mname) y Secundario (rname)
host: qumas.com
class: IN
ttl: 86400
type: SOA
mname: ns1.iptwins.net
rname: dns-log.iptwins.com
serial: 2024012600
refresh: 86400
retry: 7200
expire: 2592000
minimum-ttl: 345600