Servidores DNS Principal (mname) y Secundario (rname)
host: icedogs.be
class: IN
ttl: 3600
type: SOA
mname: ns-v.dns.versio.nl
rname: hostmaster.icedogs.be
serial: 2025061915
refresh: 3600
retry: 3600
expire: 1209600
minimum-ttl: 86400