Registro IPv4
host: national.com
class: IN
ttl: 900
type: A
ip: 198.47.23.159

Servidores DNS Principal (mname) y Secundario (rname)
host: national.com
class: IN
ttl: 900
type: SOA
mname: oleibdm.itg.ti.com
rname: hostmaster.ti.com
serial: 601
refresh: 900
retry: 300
expire: 4838400
minimum-ttl: 300

Información TXT
host: national.com
class: IN
ttl: 900
type: TXT
txt: v=spf1 mx include:spf.ti.com include:sgizmo.com -all
entries: Array