Registro IPv4
host: ctls.ru
class: IN
ttl: 90
type: A
ip: 88.212.208.67

Servidores DNS Principal (mname) y Secundario (rname)
host: ctls.ru
class: IN
ttl: 90
type: SOA
mname: exp1.nameself.com
rname: support.webnames.ru
serial: 2020031001
refresh: 300
retry: 60
expire: 3600
minimum-ttl: 60