DNS delegation of com.dk updated: May 21, 2013 10:49:18 AM
Delegation
step
query
auth
servers
1
com.dk.
.
(a,l,k,c,i,b,g,h,j,f,e,d,m).root-servers.net.
2
com.dk.
dk.
(b,c,p,s,a,l).nic.dk.
3
com.dk.
com.dk.
(auth01,auth02).ns.dk-hostmaster.dk.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about com.dk and learn that dk is delegated to six name servers (2), so we ask b.nic.dk where we learn that com.dk is delegated to two name servers, including auth01.ns.dk-hostmaster.dk (3), so we ask that one and get the following answer:
Com.dk is a domain controlled by two domain name servers at dk-hostmaster.dk having a total of three IP numbers. All three of them are on different IP networks.