Servidores DNS Principal (mname) y Secundario (rname)
host: pewsplace.com
class: IN
ttl: 1800
type: SOA
mname: ns1.dyna-ns.net
rname: hostmaster.pewsplace.com
serial: 2025022501
refresh: 16384
retry: 2048
expire: 1209600
minimum-ttl: 2560