Registro IPv4
host: insct.org
class: IN
ttl: 300
type: A
ip: 128.230.18.191

Servidores DNS Principal (mname) y Secundario (rname)
host: insct.org
class: IN
ttl: 900
type: SOA
mname: ns1.syr.edu
rname: nisc.syr.edu
serial: 2014021824
refresh: 3600
retry: 1200
expire: 604800
minimum-ttl: 3600