DNS delegation of a1.nstld.com updated: Jun 19, 2013 2:32:50 PM
Delegation
step
query
auth
servers
1
a1.nstld.com.
.
(f,m,b,a,l,h,i,j,g,k,e,d,c).root-servers.net.
2
a1.nstld.com.
com.
(c,f,e,a,g,m,k,d,h,b,i,l,j).gtld-servers.net.
3
a1.nstld.com.
nstld.com.
(l2,e2,d2,c2,a2,g2,f2).nstld.com.
4
a.gtld-servers.net.
.
(d,c,i,j,g,e,a,b,h,f,k,l,m).root-servers.net.
5
a.gtld-servers.net.
net.
(c,e,b,m,h,j,l,d,k,g,i,a,f).gtld-servers.net.
6
a.gtld-servers.net.
gtld-servers.net.
(l2,h2,e2,a2,d2,g2,c2,f2).gtld-servers.net.
We pick f.root-servers.net, one of the 13 root servers (1), and ask it about a1.nstld.com and learn that com is delegated to 13 name servers (2), so we ask c.gtld-servers.net where we learn that nstld.com is delegated to seven name servers, including l2.nstld.com (3), so we ask that one where we see a CNAME from a1.nstld.com to a.gtld-servers.net, so we have to start all over again. We pick d.root-servers.net, one of the 13 root servers (4), and ask it about a.gtld-servers.net and learn that net is delegated to 13 name servers (5), so we ask c.gtld-servers.net where we learn that gtld-servers.net is delegated to eight name servers, including l2.gtld-servers.net (6), so we ask that one and get the following answer:
Seven of those use the five name servers a, b, c, d and e.ns.zerigo.net together, hereafter referred to as "name server group 2", (example: neoteach.com and tbueno.com ).
