Registro IPv4
host: cts.edu.vn
class: IN
ttl: 300
type: A
ip: 104.21.80.187

Registro IPv4
host: cts.edu.vn
class: IN
ttl: 300
type: A
ip: 172.67.153.32

Servidores DNS Principal (mname) y Secundario (rname)
host: cts.edu.vn
class: IN
ttl: 1800
type: SOA
mname: armfazh.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2409947838
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800