Servidores DNS Principal (mname) y Secundario (rname)
host: flux-staging.com
class: IN
ttl: 18938
type: SOA
mname: dns1.p09.nsone.net
rname: hostmaster.nsone.net
serial: 1594911735
refresh: 600
retry: 600
expire: 1209600
minimum-ttl: 86400