Registro IPv4
host: devsign.co.kr
class: IN
ttl: 300
type: A
ip: 117.16.17.210

Servidores DNS Principal (mname) y Secundario (rname)
host: devsign.co.kr
class: IN
ttl: 1800
type: SOA
mname: sri.ns.cloudflare.com
rname: dns.cloudflare.com
serial: 2365008253
refresh: 10000
retry: 2400
expire: 604800
minimum-ttl: 1800