DNS delegation of www.dme.hbi.ir updated: May 25, 2013 2:15:35 AM
Delegation
step
query
auth
servers
1
www.dme.hbi.ir.
.
(h,a,b,d,f,m,c,g,k,l,i,j,e).root-servers.net.
2
www.dme.hbi.ir.
ir.
ns.irnic.ir. ns5.univie.ac.at. a.nic.ir.
3
www.dme.hbi.ir.
hbi.ir.
(ns1).hbi.ir.
We pick h.root-servers.net, one of the 13 root servers (1), and ask it about www.dme.hbi.ir and learn that ir is delegated to three name servers (2), so we ask ns.irnic.ir where we learn that hbi.ir is delegated to one name server, including ns1.hbi.ir (3), so we ask that one and get the following answer: