Registro IPv4
host: itwrk.com
class: IN
ttl: 3600
type: A
ip: 74.208.236.169

Servidores DNS Principal (mname) y Secundario (rname)
host: itwrk.com
class: IN
ttl: 7066
type: SOA
mname: ns51.1and1.com
rname: hostmaster.1and1.com
serial: 2016072609
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 300

Servidor de Correo
host: itwrk.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mx01.1and1.com

Servidor de Correo
host: itwrk.com
class: IN
ttl: 3600
type: MX
pri: 10
target: mx00.1and1.com

Registro IPv6
host: itwrk.com
class: IN
ttl: 3600
type: AAAA
ipv6: 2607:f1c0:100f:f000::2b8