Registro IPv4
host: cetb.org
class: IN
ttl: 300
type: A
ip: 75.2.115.196

Servidores DNS Principal (mname) y Secundario (rname)
host: cetb.org
class: IN
ttl: 300
type: SOA
mname: ns1.dyna-ns.net
rname: hostmaster.cetb.org
serial: 2025011201
refresh: 16384
retry: 2048
expire: 1209600
minimum-ttl: 2560