DNS delegation of debel.dk updated: May 20, 2013 5:59:54 PM
Delegation
step
query
auth
servers
1
debel.dk.
.
(i,e,j,k,b,m,l,d,a,c,f,h,g).root-servers.net.
2
debel.dk.
dk.
(s,c,a,p,l,b).nic.dk.
3
debel.dk.
debel.dk.
(ns02,ns01).tdcwebmore.dk.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about debel.dk and learn that dk is delegated to six name servers (2), so we ask s.nic.dk where we learn that debel.dk is delegated to two name servers, including ns02.tdcwebmore.dk (3), so we ask that one and get the following answer:
Debel.dk is a domain controlled by two domain name servers at tdcwebmore.dk. Both are on different IP networks. Incoming mail for debel.dk is handled by three mail servers at comendo.com having a total of two IP numbers. There are two duplicated IP numbers. Both are on the same IP network. Debel.dk has one IP number (195.74.34.74), but the reverse is tangora-fe4-74.facility.dir.dk.
Three of the about twenty host names that point only to the IP number 195.74.34.74 use the three name servers ns, ns2 and ns3.dandomain.dk together (example: emrs.com ).
The two name servers ns01 and ns02.tdcwebmore.dk together
There are several thousand of domains that use name server group 1.