Servidores DNS Principal (mname) y Secundario (rname)
host: toreka.com
class: IN
ttl: 3600
type: SOA
mname: ns-a1.zc-dns.com
rname: postmaster.toreka.com
serial: 1715052750
refresh: 3600
retry: 600
expire: 86400
minimum-ttl: 3600