Servidores DNS Principal (mname) y Secundario (rname)
host: tir.tw
class: IN
ttl: 1783
type: SOA
mname: jazz.ccdw.org
rname: root.tir.tw
serial: 2026062801
refresh: 10800
retry: 600
expire: 1209600
minimum-ttl: 3600

Servidor de Correo
host: tir.tw
class: IN
ttl: 1784
type: MX
pri: 20
target: jazz.ccdw.org