Registro IPv4
host: tcythg.edu.vn
class: IN
ttl: 300
type: A
ip: 45.252.248.53

Servidores DNS Principal (mname) y Secundario (rname)
host: tcythg.edu.vn
class: IN
ttl: 705
type: SOA
mname: ns1.zonedns.vn
rname: root.tcythg.edu.vn
serial: 2025061904
refresh: 1200
retry: 600
expire: 1209600
minimum-ttl: 3600