Servidores DNS Principal (mname) y Secundario (rname)
host: fag5.com
class: IN
ttl: 21600
type: SOA
mname: ns1.axadns.com
rname: hostmaster.fag5.com
serial: 2020121804
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 1800