Registro IPv4
host: eku.ch
class: IN
ttl: 3600
type: A
ip: 20.47.71.17

Servidores DNS Principal (mname) y Secundario (rname)
host: eku.ch
class: IN
ttl: 3600
type: SOA
mname: NS1.first365.net
rname: hostmaster.firstframe.net
serial: 2025081904
refresh: 1200
retry: 600
expire: 172800
minimum-ttl: 3600