DNS delegation of nikitel.com updated: May 19, 2013 11:43:27 AM
Delegation
step
query
auth
servers
1
nikitel.com.
.
(b,a,c,d,m,h,e,j,f,i,l,k,g).root-servers.net.
2
nikitel.com.
com.
(c,g,i,d,b,l,j,k,a,f,m,e,h).gtld-servers.net.
3
nikitel.com.
nikitel.com.
(ns8,ns4,ns3).nic.ru.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about nikitel.com and learn that com is delegated to 13 name servers (2), so we ask c.gtld-servers.net where we learn that nikitel.com is delegated to three name servers, including ns8.nic.ru (3), so we ask that one and get the following answer:
Nikitel.com is a domain controlled by three domain name servers at nic.ru. All three of them are on different IP networks. Incoming mail for nikitel.com is handled by three mail servers at nicmail.ru having a total of eight IP numbers. All eight of them are on the same IP network. Nikitel.com has one IP number (195.208.1.107).
Most of the several thousand of domains that use the primary name server ns3.nic.ru use name server group 1 (example: katunin.ru, mird.ru and videoi.ru ). Worth noting is that half of the domains that use name server group 1 use the primary name server ns3.nic.ru.
The IPv4 number 195.208.1.107 only
There are more than hundred domains that only use the IPv4 number 195.208.1.107.
Half of those use the three mail servers mx01, mx02 and mx03.nicmail.ru together, hereafter referred to as "mail server group 1", (example: ciss.ru, baltlaw.ru and krepezhsv.ru ). Worth noting is that at least one of the domains that use mail server group 1 use only the IPv4 number 195.208.1.107.