DNS delegation of mx1.midimas.com updated: May 21, 2013 3:06:37 PM
Delegation
step
query
auth
servers
1
mx1.midimas.com.
.
(e,i,j,d,b,g,l,a,m,h,k,f,c).root-servers.net.
2
mx1.midimas.com.
com.
(e,i,j,k,h,a,c,d,l,m,b,f,g).gtld-servers.net.
3
mx1.midimas.com.
midimas.com.
(ns3,ns2,ns1).slconseil.com.
4
www.midimas.com.
midimas.com.
(ns3,ns1,ns2).slconseil.com.
5
azimut.nfrance.com.
com.
(g,l,d,f,i,a,e,j,b,m,c,k,h).gtld-servers.net.
6
azimut.nfrance.com.
nfrance.com.
(ns1,ns3,ns2).slconseil.com.
We pick e.root-servers.net, one of the 13 root servers (1), and ask it about mx1.midimas.com and learn that com is delegated to 13 name servers (2), so we ask e.gtld-servers.net where we learn that midimas.com is delegated to three name servers, including ns3.slconseil.com (3), so we ask that one where we see a CNAME from mx1.midimas.com to www.midimas.com, so we have to start all over again. We already know that ns3.slconseil.com is authoritative for midimas.com (4) and ask it about www.midimas.com and see a second CNAME from www.midimas.com to azimut.nfrance.com. We start over for the third time and we already know that g.gtld-servers.net is authoritative for com (5) and ask it about azimut.nfrance.com and learn that nfrance.com is delegated to three name servers (6), so we ask ns1.slconseil.com and get the following answer: