Servidores DNS Principal (mname) y Secundario (rname)
host: uoc.es
class: IN
ttl: 900
type: SOA
mname: ns-1520.awsdns-62.org
rname: awsdns-hostmaster.amazon.com
serial: 1
refresh: 7200
retry: 900
expire: 1209600
minimum-ttl: 86400

Información TXT
host: uoc.es
class: IN
ttl: 300
type: TXT
txt: v=spf1 ip4:3.248.238.191 ip4:34.248.212.113 ip4:54.155.47.62 ~all
entries: Array