Registro IPv4
host: isnadco.com
class: IN
ttl: 7200
type: A
ip: 208.91.197.27

Servidores DNS Principal (mname) y Secundario (rname)
host: isnadco.com
class: IN
ttl: 7200
type: SOA
mname: NS1.DOMAIN.com
rname: dnsadmin\@domain.com
serial: 124082804
refresh: 10800
retry: 3600
expire: 604800
minimum-ttl: 3600