ns.tokyo.wide.ad.jp
DNS delegation of ns.tokyo.wide.ad.jp updated: Jun 18, 2013 9:32:37 PM
Delegation
step query auth servers 1 ns.tokyo.wide.ad.jp. . (k,g,m,c,l,d,e,b,i,h,f,a,j).root-servers.net. 2 ns.tokyo.wide.ad.jp. jp. (d,f,a,e,b,c,g).dns.jp. 3 ns.tokyo.wide.ad.jp. wide.ad.jp. mango.itojun.org. ns.tokyo.wide.ad.jp. ns-wide.wide.ad.jp.
We pick k.root-servers.net , one of the 13 root servers (1), and ask it about ns.tokyo.wide.ad.jp and learn that jp is delegated to seven name servers (2), so we ask d.dns.jp where we learn that wide.ad.jp is delegated to three name servers, including mango.itojun.org (3), so we ask that one and get the following answer:
Authoritative answer
jp. net. org. ad.jp. dns.jp. g.dns.jp. a.dns.jp. d.dns.jp. b.dns.jp. c.dns.jp. e.dns.jp. f.dns.jp. itojun.org. wide.ad.jp. tokyo.wide.ad.jp. root-servers.net. mango.itojun.org. m.root-servers.net. a.root-servers.net. ns-wide.wide.ad.jp. j.root-servers.net. h.root-servers.net. d.root-servers.net. i.root-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. f.root-servers.net. c.root-servers.net. b.root-servers.net. e.root-servers.net. ns.tokyo.wide.ad.jp.
whois jp whois net whois org whois ad.jp whois dns.jp whois itojun.org whois root-servers.net whois ad.jp , ad.jp ad.jp The name server ns.tokyo.wide.ad.jp There are about sixty domains that use the name server ns.tokyo.wide.ad.jp .
Half of those use the three name servers mango.itojun.org , ns-wide.wide.ad.jp and ns.tokyo.wide.ad.jp together, hereafter referred to as "name server group 1 ", (example: 141.178.203.in-addr.arpa , 149.178.203.in-addr.arpa and wide.ad.jp ). Eight of them use the two name servers polestar.cc.toyaku.ac.jp and ns.tokyo.wide.ad.jp together, hereafter referred to as "name server group 2 ", (example: 48.249.202.in-addr.arpa , 50.249.202.in-addr.arpa and 252.253.202.in-addr.arpa ). Seven of them use the three name servers lake.cc.cuc.ac.jp , spring.cc.cuc.ac.jp and ns.tokyo.wide.ad.jp together, hereafter referred to as "name server group 3 ", (example: dup.cuc.ac.jp , 33.244.202.in-addr.arpa and cuc.ac.jp ). Five of them use only the mail server rainbow.cc.cuc.ac.jp (example: pi.cuc.ac.jp , cc.cuc.ac.jp and miz.cuc.ac.jp ). The three name servers lake.cc.cuc.ac.jp, spring.cc.cuc.ac.jp and ns.tokyo.wide.ad.jp together Five of the seven domains that use name server group 3 use only the mail server rainbow.cc.cuc.ac.jp .
The three name servers mango.itojun.org, ns-wide.wide.ad.jp and ns.tokyo.wide.ad.jp together Two of the about thirty domains that use name server group 1 use only the mail server mail.wide.ad.jp .
The two name servers polestar.cc.toyaku.ac.jp and ns.tokyo.wide.ad.jp together Two of the eight domains that use name server group 2 point only to the IP number 202.249.50.48 (example: cc.toyaku.ac.jp ).
The IP number 203.178.136.61 All of the one host names that point to the IP number 203.178.136.61 point to IP group 1 .
robtex on ns.tokyo.wide.ad.jp ns.tokyo.wide.ad.jp mnw
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