sncstudy.com.		30 IN SOA ns75.koreadns.kr. hostmaster.koreadns.kr. (
				2019021315 ; serial
				28800      ; refresh (8 hours)
				7200       ; retry (2 hours)
				604800     ; expire (1 week)
				300        ; minimum (5 minutes)
				)

sncstudy.com.		30 IN A	222.122.203.12

Mail exchangers:
sncstudy.com.		30 IN MX 10 mail.sncstudy.com.

Name servers:
sncstudy.com.		30 IN NS ns84.koreadns.kr.
sncstudy.com.		30 IN NS ns75.koreadns.kr.