Registro IPv4
host: airtek.com
class: IN
ttl: 900
type: A
ip: 20.49.97.30

Servidores DNS Principal (mname) y Secundario (rname)
host: airtek.com
class: IN
ttl: 900
type: SOA
mname: whq089i116.us.parker.corp
rname: hostmaster.parker.com
serial: 1000031
refresh: 1800
retry: 900
expire: 1209600
minimum-ttl: 300