We pick m.root-servers.net, one of the 13 root servers (1), and ask it about mobile.hr and learn that hr is delegated to four name servers (2), so we ask ns5.univie.ac.at where we learn that mobile.hr is delegated to two name servers, including orion.perpetuum.hr (3), so we ask that one and get the following answer:
There are five host names that point to the IP number 213.191.141.2.
All of those point only to that ip number.
Three of them use name server group 2.
The two name servers dns2.iskon.hr and orion.perpetuum.hr together
There are six domains that use name server group 2.
Three of those point only to the IP number 213.191.141.2. Worth noting is that three of the host names that point only to the IP number 213.191.141.2 use name server group 2.
Two of them use only the mail server mail.perpetuum.hr. Worth noting is that all of the domains that only use the mail server mail.perpetuum.hr use name server group 2.
Two of them point only to the IP number 213.191.141.2.
The IP number 213.191.141.2 only
Three of the five host names that point only to the IP number 213.191.141.2 use name server group 2. Worth noting is that three of the domains that use name server group 2 point only to the IP number 213.191.141.2.
The mail server mail.perpetuum.hr only
There are two domains that only use the mail server mail.perpetuum.hr.
All of those use name server group 2. Worth noting is that two of the domains that use name server group 2 use only the mail server mail.perpetuum.hr.
All of them point only to the IP number 213.191.141.2.
