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IP	Type	Hostname
147.157.0.0	PTR	tsukuba-tech.ac.jp
147.157.1.1	A+PTR	jainport.k.tsukuba-tech.ac.jp
147.157.1.1	A+PTR	ns.k.tsukuba-tech.ac.jp
147.157.1.20	PTR	mailgw03.k.tsukuba-tech.ac.jp
147.157.1.20	A	mailgw.studyhard.jp
147.157.1.20	A	mailgw.ntut-braille-net.org
147.157.2.1	A+PTR	maila.k.tsukuba-tech.ac.jp
147.157.2.1	A+PTR	ns2.k.tsukuba-tech.ac.jp
147.157.2.20	A+PTR	mailgw02.k.tsukuba-tech.ac.jp
147.157.33.103	A	svr.berezka.jp