DNS delegation of vn1n.com updated: Jun 20, 2013 10:59:10 AM
Delegation
step
query
auth
servers
1
vn1n.com.
.
(e,f,d,h,m,k,g,i,j,l,b,c,a).root-servers.net.
2
vn1n.com.
com.
(j,b,h,f,k,l,c,d,m,e,i,g,a).gtld-servers.net.
3
vn1n.com.
vn1n.com.
(ns4,ns3).above.com.
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about vn1n.com and learn that com is delegated to 13 name servers (2), so we ask j.gtld-servers.net where we learn that vn1n.com is delegated to two name servers, including ns4.above.com (3), so we ask that one and get the following answer:
At least one of them use the four name servers ns1, ns2, ns3 and ns4.above.com together, hereafter referred to as "name server group 3", (example: onotsukaserver.com ).
The IP number 69.43.161.179 only
There are several thousand of host names that point only to the IP number 69.43.161.179.