Registro IPv4
host: opened.ca
class: IN
ttl: 3600
type: A
ip: 198.162.20.90

Servidores DNS Principal (mname) y Secundario (rname)
host: opened.ca
class: IN
ttl: 3600
type: SOA
mname: adonis1.tru.ca
rname: hostmaster.tru.ca
serial: 765184398
refresh: 1200
retry: 180
expire: 1209600
minimum-ttl: 3600