Registro IPv4
host: szlezze.com
class: IN
ttl: 900
type: A
ip: 221.231.138.16

Servidores DNS Principal (mname) y Secundario (rname)
host: szlezze.com
class: IN
ttl: 600
type: SOA
mname: dns.4cun.com
rname: admin.szlezze.com
serial: 1569035772
refresh: 3600
retry: 180
expire: 1209600
minimum-ttl: 600