DNS delegation of mf0.yahoodns.net updated: May 18, 2013 10:19:40 PM
Delegation
step
query
auth
servers
1
mf0.yahoodns.net.
.
(j,l,a,c,f,d,h,i,b,m,e,g,k).root-servers.net.
2
mf0.yahoodns.net.
net.
(g,d,k,h,j,i,l,m,c,b,e,f,a).gtld-servers.net.
3
mf0.yahoodns.net.
yahoodns.net.
(ns4,ns3,ns5,ns2,ns1).yahoo.com.
4
mf0.yahoodns.net.
mf0.yahoodns.net.
(mf1,mf4,mf2,mf3).yahoo.com.
We pick j.root-servers.net, one of the 13 root servers (1), and ask it about mf0.yahoodns.net and learn that net is delegated to 13 name servers (2), so we ask g.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 mf0.yahoodns.net is delegated to four name servers (4), so we ask mf1.yahoo.com and get the following answer: