DNS delegation of san.yahoo.com updated: May 19, 2013 6:37:06 AM
Delegation
step
query
auth
servers
1
san.yahoo.com.
.
(f,h,a,i,b,l,j,c,e,k,d,g,m).root-servers.net.
2
san.yahoo.com.
com.
(i,g,l,j,k,d,a,b,h,c,e,m,f).gtld-servers.net.
3
san.yahoo.com.
yahoo.com.
(ns2,ns1,ns4,ns5,ns3).yahoo.com.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about san.yahoo.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that yahoo.com is delegated to five name servers, including ns2.yahoo.com (3), so we ask that one and get the following answer:
San.yahoo.com is hosted on a server in Sunnyvale, CA, United States.
The two IP numbers 68.180.206.184 and 98.139.102.145 together
There are several thousand of host names that point to the two IP numbers 68.180.206.184 and 98.139.102.145 together, hereafter referred to as "IP group 1".
