Servidores DNS Principal (mname) y Secundario (rname)
host: kalima.com
class: IN
ttl: 74733
type: SOA
mname: ns1.thalesgroup.com
rname: operateur-dns.thalesgroup.com
serial: 2025082000
refresh: 21600
retry: 3600
expire: 3600000
minimum-ttl: 900