1. whois
aichi-med-u.ac.jp. 86400 IN NS amugw32.aichi-med-u.ac.jp. aichi-med-u.ac.jp. 86400 IN NS amugw22.aichi-med-u.ac.jp. aichi-med-u.ac.jp. 86400 IN NS meron.aichi-med-u.ac.jp. aichi-med-u.ac.jp. 86400 IN NS amugw35.aichi-med-u.ac.jp. amugw35.aichi-med-u.ac.jp. 86400 IN A 192.218.116.85 amugw32.aichi-med-u.ac.jp. 86400 IN A 192.218.116.33 amugw22.aichi-med-u.ac.jp. 86400 IN A 192.218.116.33 meron.aichi-med-u.ac.jp. 86400 IN A 192.218.116.1
2. history
$ dig -t ns aichi-med-u.ac.jp @192.218.116.1
aichi-med-u.ac.jp. 600 IN NS meron.aichi-med-u.ac.jp. aichi-med-u.ac.jp. 600 IN NS amugw42.aichi-med-u.ac.jp. ;; ADDITIONAL SECTION: meron.aichi-med-u.ac.jp. 600 IN A 192.218.116.1 amugw42.aichi-med-u.ac.jp. 600 IN A 192.218.116.33 aichi-med-u.ac.jp. 600 IN TXT "v=spf1 +ip4:192.218.116.33 +ip4:192.218.116.101 include:spf.protection.outlook.com -all"