Created
May 16, 2020 17:42
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tld のゾーンは awsdns を知っているのか
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$ for tld in com net org co.uk; do dig +norec +noall +auth @a.root-servers.net -t ns $tld | sort | head -n 1; done | |
com. 172800 IN NS a.gtld-servers.net. | |
net. 172800 IN NS a.gtld-servers.net. | |
org. 172800 IN NS a0.org.afilias-nst.info. | |
uk. 172800 IN NS dns1.nic.uk. | |
$ dig +norec +noall +auth +add @a.gtld-servers.net go90.com | |
go90.com. 172800 IN NS ns-635.awsdns-15.net. | |
go90.com. 172800 IN NS ns-481.awsdns-60.com. | |
go90.com. 172800 IN NS ns-1662.awsdns-15.co.uk. | |
go90.com. 172800 IN NS ns-1101.awsdns-09.org. | |
ns-481.awsdns-60.com. 172800 IN A 205.251.193.225 | |
$ dig +norec +noall +auth +add @a.gtld-servers.net debiru.net | |
debiru.net. 172800 IN NS ns-738.awsdns-28.net. | |
debiru.net. 172800 IN NS ns-371.awsdns-46.com. | |
debiru.net. 172800 IN NS ns-1642.awsdns-13.co.uk. | |
debiru.net. 172800 IN NS ns-1088.awsdns-08.org. | |
ns-738.awsdns-28.net. 172800 IN A 205.251.194.226 | |
$ dig +norec +noall +auth +add @a0.org.afilias-nst.info hatenadiary.org | |
hatenadiary.org. 86400 IN NS ns-1954.awsdns-52.co.uk. | |
hatenadiary.org. 86400 IN NS ns-1037.awsdns-01.org. | |
hatenadiary.org. 86400 IN NS ns-57.awsdns-07.com. | |
hatenadiary.org. 86400 IN NS ns-905.awsdns-49.net. | |
ns-1037.awsdns-01.org. 86400 IN A 205.251.196.13 | |
$ dig +norec +noall +auth +add @dns1.nic.uk jumpseller.co.uk | |
jumpseller.co.uk. 172800 IN NS ns-320.awsdns-40.com. | |
jumpseller.co.uk. 172800 IN NS ns-654.awsdns-17.net. | |
jumpseller.co.uk. 172800 IN NS ns-1469.awsdns-55.org. | |
jumpseller.co.uk. 172800 IN NS ns-1858.awsdns-40.co.uk. |
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dig した対象のドメイン名は適当です。awsdns を使っていれば何でも良かった。
*.co.uk
はuk
ゾーンから委任されている(co.uk
ゾーンは無い)が、uk
ゾーンは ADDITIONAL を返さなかった。ただ、whois を引いてみると awsdns の IP アドレスが載っている。