Registro IPv4
host: hd.ctn.aicdn.com
class: IN
ttl: 300
type: A
ip: 27.25.152.241

host: haodaxue.net
class: IN
ttl: 598
type: CNAME
target: haodaxue-net-idvc0tj.qiniudns.com

Servidores DNS Principal (mname) y Secundario (rname)
host: hd.ctn.aicdn.com
class: IN
ttl: 300
type: SOA
mname: ns1.ialloc.com
rname: wtzhu182.163.com
serial: 2015102101
refresh: 3600
retry: 180
expire: 1209600
minimum-ttl: 10800