We pick l.root-servers.net, one of the 13 root servers (1), and ask it about msk-ix.net and learn that net is delegated to 13 name servers (2), so we ask j.gtld-servers.net where we learn that msk-ix.net is delegated to three name servers, including int3.dns.ripn.net (3), so we ask that one and get the following answer:
There are about twenty domains that use the mail server relay2.ripn.net.
All of those use mail server group 1.
Half of them use name server group 1.
The three name servers ns.relarn.ru, int2.dns.ripn.net and int3.dns.ripn.net together
There are more than hundred domains that use name server group 1.
More than one in seven of those use mail server group 1. Worth noting is that half of the domains that use mail server group 1 use name server group 1.
Six of them point to IP group 2.
Six of them point to IP group 1.
The three mail servers relay2, relay3 and relay4.ripn.net together
Half of the about twenty domains that use mail server group 1 use name server group 1. Worth noting is that ten percent of the domains that use name server group 1 use mail server group 1.
