chongju.ac.kr.		30 IN SOA ns.chongju.ac.kr. master.chongju.ac.kr. (
				2023050301 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				900        ; minimum (15 minutes)
				)

chongju.ac.kr.		30 IN TXT
"google-site-verification=L39nI-uX9E-AVCOcZSrnHdxRs9MXIr03Sx4AAXjzzGo"
chongju.ac.kr.		30 IN TXT "v=spf1 ip4:203.252.252.7 ip4:203.252.224.71
ip4:203.252.226.211 -all"

chongju.ac.kr.		30 IN A	203.252.226.20

Mail exchangers:
chongju.ac.kr.		30 IN MX 10 spam.chongju.ac.kr.
chongju.ac.kr.		30 IN MX 20 mail.chongju.ac.kr.

Name servers:
chongju.ac.kr.		30 IN NS ns.chongju.ac.kr.
chongju.ac.kr.		30 IN NS ns2.chongju.ac.kr.