Registro IPv4
host: tcren.cn
class: IN
ttl: 600
type: A
ip: 112.124.6.214

Servidores DNS Principal (mname) y Secundario (rname)
host: tcren.cn
class: IN
ttl: 90
type: SOA
mname: 
rname: mail.jiasule.net
serial: 1
refresh: 600
retry: 180
expire: 1209600
minimum-ttl: 180