Registro IPv4
host: usdhnfu.com
class: IN
ttl: 600
type: A
ip: 156.250.100.171

Servidores DNS Principal (mname) y Secundario (rname)
host: usdhnfu.com
class: IN
ttl: 3600
type: SOA
mname: ns51.cloudns.net
rname: support.cloudns.net
serial: 2025060206
refresh: 7200
retry: 1800
expire: 1209600
minimum-ttl: 3600