pufs.ac.kr.		30 IN SOA ns2. hostmaster. (
				8          ; serial
				900        ; refresh (15 minutes)
				600        ; retry (10 minutes)
				86400      ; expire (1 day)
				3600       ; minimum (1 hour)
				)

pufs.ac.kr.		30 IN A	223.195.222.243

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

Name servers:
pufs.ac.kr.		30 IN NS ns2.