DNS delegation of mobile.eu updated: May 26, 2013 8:54:24 AM
Delegation
step
query
auth
servers
1
mobile.eu.
.
(d,m,c,b,a,l,k,i,j,h,f,g,e).root-servers.net.
2
mobile.eu.
eu.
(cz,nl,si,x,y,uk).dns.eu.
3
mobile.eu.
mobile.eu.
(dns47-2,dns46-2).mobile.de.
We pick d.root-servers.net, one of the 13 root servers (1), and ask it about mobile.eu and learn that eu is delegated to six name servers (2), so we ask cz.dns.eu where we learn that mobile.eu is delegated to two name servers, including dns47-2.mobile.de (3), so we ask that one and get the following answer:
Mobile.eu is a domain controlled by two domain name servers at mobile.de having a total of four IP numbers. Two of them are on the same IP network. Incoming mail for mobile.eu is handled by two mail servers also at mobile.de having a total of four IP numbers. Two of them are on the same IP network. Mobile.eu has two IP numbers (194.50.69.167, 91.211.75.167). Both are on different IP networks.
The two name servers dns45-2 and dns46-2.mobile.de together
Three of the seven domains that use the two name servers dns45-2 and dns46-2.mobile.de together, hereafter referred to as "name server group 2", point to the two IP numbers 91.211.75.154 and 194.50.69.154 together (example: mobile.ch ).
The two mail servers mail46-1 and mail47-1.mobile.de together
Six of the about twenty domains that use mail server group 1 point only to the IP number 194.50.69.144.
The mail server mail46-1.mobile.de
There are about thirty domains that use the mail server mail46-1.mobile.de.
Three of them point to the IP number 194.50.69.167. Worth noting is that three of the host names that point to the IP number 194.50.69.167 use the name server dns46-2.mobile.de.
The two name servers dns46-2 and dns47-2.mobile.de together