Servidores DNS Principal (mname) y Secundario (rname)
host: 5000n-29.duckart.pro
class: IN
ttl: 3600
type: SOA
mname: ns1.dns-redirect.com
rname: admin.dns.com
serial: 2024072901
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 3600