Registro IPv4
host: build2.ru
class: IN
ttl: 900
type: A
ip: 91.194.2.86

Servidores DNS Principal (mname) y Secundario (rname)
host: build2.ru
class: IN
ttl: 900
type: SOA
mname: ns2.q11.ru
rname: mail.mybb.ru
serial: 2020040700
refresh: 900
retry: 900
expire: 21600
minimum-ttl: 900