Registro IPv4
host: world1000.com
class: IN
ttl: 604800
type: A
ip: 217.154.115.3

Servidores DNS Principal (mname) y Secundario (rname)
host: world1000.com
class: IN
ttl: 604800
type: SOA
mname: josephine.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2418330058
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800