Servidores DNS Principal (mname) y Secundario (rname)
host: icbc-ltd.com
class: IN
ttl: 1200
type: SOA
mname: cns2.icbc.com.cn
rname: hostmaster.cns2.icbc.com.cn
serial: 2024041015
refresh: 28800
retry: 7200
expire: 604800
minimum-ttl: 1200

Información TXT
host: icbc-ltd.com
class: IN
ttl: 3600
type: TXT
txt: v=spf1 include:spf.icbc.com.cn -all
entries: Array