bufs.ac.kr.		30 IN SOA ns2. hostmaster. (
				2010051364 ; serial
				300        ; refresh (5 minutes)
				600        ; retry (10 minutes)
				900        ; expire (15 minutes)
				300        ; minimum (5 minutes)
				)

bufs.ac.kr.		30 IN TXT "v=spf1 ip4:223.195.222.0/24 ~all"

bufs.ac.kr.		30 IN A	223.195.222.243

Mail exchangers:
bufs.ac.kr.		30 IN MX 1 nospam.bufs.ac.kr.
bufs.ac.kr.		30 IN MX 10 mail.bufs.ac.kr.

Name servers:
bufs.ac.kr.		30 IN NS ns.bufs.ac.kr.
bufs.ac.kr.		30 IN NS ns2.bufs.ac.kr.
bufs.ac.kr.		30 IN NS ns3.bufs.ac.kr.
bufs.ac.kr.		30 IN NS ns-1385.awsdns-45.org.
bufs.ac.kr.		30 IN NS ns-885.awsdns-46.net.
bufs.ac.kr.		30 IN NS ns-402.awsdns-50.com.
bufs.ac.kr.		30 IN NS ns-1609.awsdns-09.co.uk.