DNS delegation of i.co.kr updated: May 23, 2013 10:47:47 AM
Delegation
step
query
auth
servers
1
i.co.kr.
.
(b,e,f,g,k,h,m,l,i,d,c,a,j).root-servers.net.
2
i.co.kr.
kr.
(g,c,d,f,e,b).dns.kr.
3
i.co.kr.
i.co.kr.
(ns68,ns57,ns25,ns231,ns259).dnsever.com.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about i.co.kr and learn that kr is delegated to six name servers (2), so we ask g.dns.kr where we learn that i.co.kr is delegated to five name servers, including ns68.dnsever.com (3), so we ask that one and get the following answer:
I.co.kr is a domain controlled by five domain name servers at dnsever.com. Some of them are on the same IP network. Incoming mail for i.co.kr is handled by seven mail servers at googlemail.com and google.com having a total of 53 IP numbers. There are 33 duplicated IP numbers. Some of them are on the same IP network. I.co.kr has one IP number (121.254.154.155), but the reverse is ?.
The five mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l…
Eight percent of the several thousand of domains that use mail server group 2 point only to the IP number 68.178.232.100 (example: s24robotics.com and gcuid.com ).
