DNS delegation of g07.yahoodns.net updated: May 21, 2013 11:42:08 AM
Delegation
step
query
auth
servers
1
g07.yahoodns.net.
.
(c,h,a,j,b,d,f,i,m,l,k,g,e).root-servers.net.
2
g07.yahoodns.net.
net.
(h,d,e,m,j,f,i,k,c,b,a,l,g).gtld-servers.net.
3
g07.yahoodns.net.
yahoodns.net.
(ns4,ns1,ns5,ns2,ns3).yahoo.com.
4
g07.yahoodns.net.
g07.yahoodns.net.
(yf3,yf8,yf2,yf5,yf4,yf1,yf7,yf6).yahoo.com.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about g07.yahoodns.net and learn that net is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that yahoodns.net is delegated to five name servers, including ns4.yahoo.com (3), so we ask that one and learn that g07.yahoodns.net is delegated to eight name servers (4), so we ask yf3.yahoo.com and get the following answer:
G07.yahoodns.net is a domain controlled by eight domain name servers at yahoo.com. Two domain name servers have the same IP number. All seven of them are on different IP networks.