DNS delegation of m-2-s.com updated: May 24, 2013 9:32:15 AM
Delegation
step
query
auth
servers
1
m-2-s.com.
.
(c,i,h,d,m,f,e,g,a,l,k,b,j).root-servers.net.
2
m-2-s.com.
com.
(i,m,d,h,g,a,j,l,c,k,b,f,e).gtld-servers.net.
3
m-2-s.com.
m-2-s.com.
(ns2,ns3,ns1).unimedia.fr.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about m-2-s.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that m-2-s.com is delegated to three name servers, including ns2.unimedia.fr (3), so we ask that one and get the following answer:
M-2-s.com is a domain controlled by three domain name servers at unimedia.fr. All three of them are on different IP networks. Incoming mail for m-2-s.com is handled by three mail servers also at unimedia.fr having a total of four IP numbers. Two of them are on the same IP network. M-2-s.com has one IP number (95.141.115.27), but the reverse is php51-2.unimedia.fr.
The three mail servers mx1, mx2 and mx3.unimedia.fr together
There are several hundred of domains that use the three mail servers mx1, mx2 and mx3.unimedia.fr together, hereafter referred to as "mail server group 1".
The three name servers ns1, ns2 and ns3.unimedia.fr together
There are several hundred of domains that use name server group 1.
Most of those use mail server group 1 (example: phbgroup.fr, alma-sotapharm.com and cogite-reseau.com ). Worth noting is that most of the domains that use mail server group 1 use name server group 1.
The two name servers ns1 and ns2.unimedia.fr together
There are more than two hundred domains that use the two name servers ns1 and ns2.unimedia.fr together (but not ns3.unimedia.fr ), hereafter referred to as "name server group 2".
The two mail servers mx1 and mx2.unimedia.fr together
There are several hundred of domains that use mail server group 2.
Most of those use name server group 2 (example: marquageslaser.com, melyvan.com and allianceauto.fr ). Worth noting is that most of the domains that use name server group 2 use mail server group 2.