Servidores DNS Principal (mname) y Secundario (rname)
host: nicuparent.com
class: IN
ttl: 6324
type: SOA
mname: pdns1.ultradns.net
rname: mcravo.marchofdimes.com
serial: 2022120201
refresh: 86400
retry: 86400
expire: 86400
minimum-ttl: 86400