DNS delegation of c.pwd.ad.jp updated: May 19, 2013 7:22:51 PM
Delegation
step
query
auth
servers
1
c.pwd.ad.jp.
.
(k,a,g,i,l,m,h,d,b,f,j,e,c).root-servers.net.
2
c.pwd.ad.jp.
jp.
(g,e,f,a,c,b,d).dns.jp.
3
c.pwd.ad.jp.
pwd.ad.jp.
(ns05,ns01,ns07,ns06,ns04).pwd.ne.jp.
4
c.pwd.ad.jp.
c.pwd.ad.jp.
(tegami1,tegami2,temae5).int-gw.kddi.ne.jp.
We pick k.root-servers.net, one of the 13 root servers (1), and ask it about c.pwd.ad.jp and learn that jp is delegated to seven name servers (2), so we ask g.dns.jp where we learn that pwd.ad.jp is delegated to five name servers, including ns05.pwd.ne.jp (3), so we ask that one and learn that c.pwd.ad.jp is delegated to three name servers (4), so we ask tegami1.int-gw.kddi.ne.jp and get the following answer:
C.pwd.ad.jp is a domain controlled by three domain name servers at kddi.ne.jp. Two of them are on the same IP network. Incoming mail for c.pwd.ad.jp is handled by one mail server also at kddi.ne.jp.