最近、修正されている。
1. whois
a. [Domain Name] ADVANTEST.CO.JP g. [Organization] ADVANTEST CORPORATION l. [Organization Type] Company m. [Administrative Contact] HY950JP n. [Technical Contact] KW1100JP n. [Technical Contact] HY950JP n. [Technical Contact] AG3600JP p. [Name Server] mx1.advantest.co.jp p. [Name Server] mx2.advantest.co.jp p. [Name Server] ns.center.web.ad.jp p. [Name Server] jpdctens01.advantest.com p. [Name Server] jpdctens02.advantest.com s. [Signing Key] [State] Connected (2024/03/31) [Registered Date] [Connected Date] 2023/04/07 [Last Update] 2023/04/07 17:34:33 (JST) ;; ADDITIONAL SECTION: mx2.advantest.co.jp. 86400 IN A 61.121.102.101 mx1.advantest.co.jp. 86400 IN A 61.121.102.100
additional problem
2. history
$ dig -t ns advantest.co.jp @jpdctens01.advantest.com.
;; ANSWER SECTION: advantest.co.jp. 900 IN NS jpdctens01.advantest.co.jp. advantest.co.jp. 900 IN NS jpdctens01.advantest.com. advantest.co.jp. 900 IN NS jpdctens02.advantest.co.jp. advantest.co.jp. 900 IN NS jpdctens02.advantest.com. advantest.co.jp. 900 IN NS mx2.advantest.co.jp. advantest.co.jp. 900 IN NS ns.center.web.ad.jp. advantest.co.jp. 900 IN NS mx1.advantest.co.jp. ;; ADDITIONAL SECTION: mx1.advantest.co.jp. 900 IN A 133.163.12.164 mx2.advantest.co.jp. 900 IN A 133.163.12.165 jpdctens01.advantest.co.jp. 900 IN A 133.163.12.164 jpdctens02.advantest.co.jp. 900 IN A 133.163.12.165