DNS delegation of hotmail.co.kr updated: May 20, 2013 4:22:05 AM
Delegation
step
query
auth
servers
1
hotmail.co.kr.
.
(c,g,j,m,b,a,e,l,k,h,i,f,d).root-servers.net.
2
hotmail.co.kr.
kr.
(e,c,d,b,f,g).dns.kr.
3
hotmail.co.kr.
hotmail.co.kr.
(ns2,ns4,ns3).msft.net.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about hotmail.co.kr and learn that kr is delegated to six name servers (2), so we ask e.dns.kr where we learn that hotmail.co.kr is delegated to three name servers, including ns2.msft.net (3), so we ask that one and get the following answer:
Hotmail.co.kr is a domain controlled by three domain name servers at msft.net having a total of six IP numbers. Two of them are on the same IP network. Incoming mail for hotmail.co.kr is handled by four mail servers at hotmail.com having a total of twelve IP numbers. There are 36 duplicated IP numbers. All twelve of them are on the same IP network.