Registro IPv4
host: b2bco.com
class: IN
ttl: 3600
type: A
ip: 178.22.122.8

Servidores DNS Principal (mname) y Secundario (rname)
host: b2bco.com
class: IN
ttl: 3600
type: SOA
mname: ns1.smartportal.org
rname: hostmaster.b2bco.com
serial: 2025070208
refresh: 900
retry: 600
expire: 86400
minimum-ttl: 3600