>>397
そうかなあ。
akadns.orgのnsをakadns.netが持ってて、akadns.netのnsをakadns.orgが持ってるんだけど、おかくしね?
$ host -t ns akadns.org
akadns.org name server zh.akadns.net
akadns.org name server zf.akadns.net
akadns.org name server zc.akadns.net
akadns.org name server za.akadns.net
akadns.org name server usw7.akam.net
akadns.org name server usw6.akam.net
akadns.org name server usw5.akam.net
akadns.org name server use4.akam.net
akadns.org name server use2.akam.net
akadns.org name server eur3.akam.net
akadns.org name server asia3.akam.net
$ host -t ns akadns.net
akadns.net name server asia3.akam.net
akadns.net name server eur3.akam.net
akadns.net name server use2.akam.net
akadns.net name server use4.akam.net
akadns.net name server usw5.akam.net
akadns.net name server usw6.akam.net
akadns.net name server usw7.akam.net
akadns.net name server za.akadns.org
akadns.net name server zc.akadns.org
akadns.net name server zf.akadns.org
akadns.net name server zh.akadns.org