Registro IPv4
host: 2018tube.com
class: IN
ttl: 600
type: A
ip: 212.7.209.207

Servidores DNS Principal (mname) y Secundario (rname)
host: 2018tube.com
class: IN
ttl: 600
type: SOA
mname: ns1.emu-dns.com
rname: admin.2018tube.com
serial: 2025111100
refresh: 86400
retry: 10800
expire: 604800
minimum-ttl: 300