DNS delegation of yambb.com updated: May 25, 2013 6:47:47 AM
Delegation
step
query
auth
servers
1
yambb.com.
.
(g,h,f,i,b,m,c,j,d,l,k,e,a).root-servers.net.
2
yambb.com.
com.
(b,d,k,i,a,h,f,c,e,j,l,m,g).gtld-servers.net.
3
yambb.com.
yambb.com.
(dns1,dns2).yam.com.
We pick g.root-servers.net, one of the 13 root servers (1), and ask it about yambb.com and learn that com is delegated to 13 name servers (2), so we ask b.gtld-servers.net where we learn that yambb.com is delegated to two name servers, including dns1.yam.com (3), so we ask that one and get the following answer:
Yambb.com is a domain controlled by two domain name servers at yam.com. Both are on the same IP network. Incoming mail for yambb.com is handled by five mail servers at googlemail.com and google.com having a total of 45 IP numbers. There are 14 duplicated IP numbers. Some of them are on the same IP network.
The three name servers dns1, dns2 and dns3.yam.com together
Four of the five domains that use the three name servers dns1, dns2 and dns3.yam.com together, hereafter referred to as "name server group 1", point only to the IP number 61.31.193.65 (example: webs-tv.com.tw ).
