Registro IPv4
host: b-smith.com
class: IN
ttl: 600
type: A
ip: 23.235.145.123

Servidores DNS Principal (mname) y Secundario (rname)
host: b-smith.com
class: IN
ttl: 227
type: SOA
mname: derek.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2414472600
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800