Servidores DNS Principal (mname) y Secundario (rname)
host: dnsbl-3.uceprotect.net
class: IN
ttl: 3600
type: SOA
mname: dnsbl-mirrors.uceprotect.net
rname: sonderlocke.fast9.uceprotect.net
serial: 2024042806
refresh: 3600
retry: 3600
expire: 86400
minimum-ttl: 120