checker を使って判定してみた。 https://dnschecker.org/#A/xxx.flip.e-ontap.com
https://dnschecker.org/#A/yyy.flip.e-ontap.com
https://dnschecker.org/#A/qqq.flip.e-ontap.com
150.42.6.1
が返る。そのあと、xxx2 A を問い合わせると
150.42.6.5
が返るか。
1. good ?
Google 8.8.8.8
2. inject
OpenDNS 208.67.222.220 Berkeley, US Quad9 9.9.9.9
Ashburn, United States NeuStar 156.154.70.64 zaCullinan, South Africa 5.11.11.5 Oberhausen, Germany Verizon Deutschland GmbH 194.172.160.4 atInnsbruck, Austria nemox.net 83.137.41.9 ieIreland Daniel Cid ru Yekaterinburg, Russian Federation Skydns 150.42.6.5 Madrid, Spain Prioritytelecom Spain S.A. 毒入れ確認
United States CenturyLink 205.171.202.66 Liquid Telecommunications LtdMadrid, Spain Prioritytelecom Spain S.A. Oberhausen, Germany Verizon Deutschland GmbH Adelaide, Australia Telstra Internet Shah Alam, Malaysia TT Dotcom Sdn Bhd 211.25.206.147