DNS delegation of www.sipphone.com updated: Jun 20, 2013 4:26:36 AM
Delegation
step
query
auth
servers
1
www.sipphone.com.
.
(m,h,i,b,a,e,f,c,g,l,d,k,j).root-servers.net.
2
www.sipphone.com.
com.
(g,a,e,m,j,b,h,i,c,l,d,f,k).gtld-servers.net.
3
www.sipphone.com.
sipphone.com.
(ns4,ns2,ns3,ns1).google.com.
We pick m.root-servers.net, one of the 13 root servers (1), and ask it about www.sipphone.com and learn that com is delegated to 13 name servers (2), so we ask g.gtld-servers.net where we learn that sipphone.com is delegated to four name servers, including ns4.google.com (3), so we ask that one and get the following answer:
