Servidores DNS Principal (mname) y Secundario (rname)
host: trans-tema.ru
class: IN
ttl: 86400
type: SOA
mname: hydrogen.ns.hetzner.com
rname: dns.hetzner.com
serial: 2023090100
refresh: 86400
retry: 10800
expire: 3600000
minimum-ttl: 3600