Servidores DNS Principal (mname) y Secundario (rname)
host: language-support.nl
class: IN
ttl: 600
type: SOA
mname: parked.g1-dns.one
rname: hostmaster.one.com
serial: 2026070901
refresh: 14400
retry: 3600
expire: 1209600
minimum-ttl: 900