Registro IPv4
host: my-courses.ru
class: IN
ttl: 3600
type: A
ip: 94.142.141.90

Servidores DNS Principal (mname) y Secundario (rname)
host: my-courses.ru
class: IN
ttl: 3600
type: SOA
mname: ns1.ihordns.net
rname: tech.ihordns.net
serial: 2025111000
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 86400

Servidor de Correo
host: my-courses.ru
class: IN
ttl: 3600
type: MX
pri: 10
target: mail.my-courses.ru

Servidor de Correo
host: my-courses.ru
class: IN
ttl: 3600
type: MX
pri: 20
target: mail.my-courses.ru