Registro IPv4
host: sofa021.cn
class: IN
ttl: 600
type: A
ip: 38.127.242.49

Servidores DNS Principal (mname) y Secundario (rname)
host: sofa021.cn
class: IN
ttl: 600
type: SOA
mname: ns1.alidns.com
rname: hostmaster.hichina.com
serial: 2025032613
refresh: 3600
retry: 1200
expire: 86400
minimum-ttl: 600