DNS delegation of alta-vista.com updated: May 21, 2013 2:45:03 PM
Delegation
step
query
auth
servers
1
alta-vista.com.
.
(g,k,a,m,j,b,f,i,h,c,l,e,d).root-servers.net.
2
alta-vista.com.
com.
(i,m,f,d,e,g,k,j,a,l,b,c,h).gtld-servers.net.
3
alta-vista.com.
alta-vista.com.
(ns1,ns3,ns5,ns4,ns2).yahoo.com.
We pick g.root-servers.net, one of the 13 root servers (1), and ask it about alta-vista.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that alta-vista.com is delegated to five name servers, including ns1.yahoo.com (3), so we ask that one and get the following answer:
Alta-vista.com is a domain controlled by five domain name servers at yahoo.com. All five of them are on different IP networks. Incoming mail for alta-vista.com is handled by one mail server at .. We are missing the IP:s of one server: .. Alta-vista.com has two IP numbers (68.180.206.184, 98.139.102.145). Both are on different IP networks.
