Registro IPv4
host: 025b.cn
class: IN
ttl: 300
type: A
ip: 38.238.26.21

Servidores DNS Principal (mname) y Secundario (rname)
host: 025b.cn
class: IN
ttl: 1800
type: SOA
mname: gabe.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2398356235
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800