Servidores DNS Principal (mname) y Secundario (rname)
host: aeternus.ru
class: IN
ttl: 1780
type: SOA
mname: ns1.r01.ru
rname: noc.parkline.ru
serial: 2021092400
refresh: 10800
retry: 1800
expire: 604800
minimum-ttl: 21600

Servidor de Correo
host: aeternus.ru
class: IN
ttl: 1780
type: MX
pri: 10
target: mx.yandex.ru