Registro IPv4
host: o.at
class: IN
ttl: 3600
type: A
ip: 80.120.17.23

Servidores DNS Principal (mname) y Secundario (rname)
host: o.at
class: IN
ttl: 1800
type: SOA
mname: dns0.a1.net
rname: domainadmin.a1.net
serial: 2019103154
refresh: 10800
retry: 3600
expire: 1814400
minimum-ttl: 3600