partialy timed out
ns2 は動いていないようだ。
ns3 はときどき返事をする。
1. whois
$ dig -t ns post.japanpost.jp @210.248.166.120 ;; communications error to 210.248.166.120#53: timed out ;; communications error to 210.248.166.120#53: timed out ;; communications error to 210.248.166.120#53: timed out ; <<>> DiG 9.18.12-0ubuntu0.22.04.1-Ubuntu <<>> -t ns post.japanpost.jp @210.248.166.120 ;; global options: +cmd ;; no servers could be reached
2. history
post.japanpost.jp. 3600 IN NS ns01.post.japanpost.jp. post.japanpost.jp. 3600 IN NS ns02.post.japanpost.jp. post.japanpost.jp. 3600 IN NS ns03.post.japanpost.jp. post.japanpost.jp. 3600 IN NS ns04.post.japanpost.jp. post.japanpost.jp. 3600 IN NS ns05.post.japanpost.jp. ;; ADDITIONAL SECTION: ns01.post.japanpost.jp. 3600 IN A 58.138.190.120 ns02.post.japanpost.jp. 3600 IN A 210.248.166.120 ns03.post.japanpost.jp. 3600 IN A 111.87.47.129 ns04.post.japanpost.jp. 3600 IN A 111.87.47.130 ns05.post.japanpost.jp. 3600 IN A 43.253.215.120