Registro IPv4
host: cfred.co
class: IN
ttl: 600
type: A
ip: 91.210.105.57

Servidores DNS Principal (mname) y Secundario (rname)
host: cfred.co
class: IN
ttl: 180
type: SOA
mname: f1g1ns1.dnspod.net
rname: freednsadmin.dnspod.com
serial: 1536651380
refresh: 3600
retry: 180
expire: 1209600
minimum-ttl: 180