duksung.ac.kr.		30 IN SOA dns.duksung.ac.kr. root.dns.duksung.ac.kr. (
				2019020823 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				30         ; minimum (30 seconds)
				)

duksung.ac.kr.		30 IN TXT "v=spf1 ip4:203.252.210.3 ip4:203.252.210.63
ip4:13.124.111.122 include:_spf.google.com a:ezsspf.bizmeka.com ~all"
duksung.ac.kr.		30 IN TXT
"worksmobile.certification.7ubetdlgnt0ei9k905.d2si5aytaot6hn.suz0okbyv"
duksung.ac.kr.		30 IN TXT "apple-domain-verification=sXeGXalyubwwNtWq"

duksung.ac.kr.		30 IN A	203.252.210.3

Mail exchangers:
duksung.ac.kr.		30 IN MX 1 spam.duksung.ac.kr.
duksung.ac.kr.		30 IN MX 5 mail.duksung.ac.kr.

Name servers:
duksung.ac.kr.		30 IN NS dns.duksung.ac.kr.
duksung.ac.kr.		30 IN NS ns2.kornet.net.