DNS delegation of ns8.yahoo.com updated: May 19, 2013 9:28:47 PM
Delegation
step
query
auth
servers
1
ns8.yahoo.com.
.
(k,j,e,g,l,b,h,a,d,f,i,m,c).root-servers.net.
2
ns8.yahoo.com.
com.
(h,d,f,c,e,k,b,j,a,g,m,l,i).gtld-servers.net.
3
ns8.yahoo.com.
yahoo.com.
(ns5,ns2,ns1,ns4,ns3).yahoo.com.
We pick k.root-servers.net, one of the 13 root servers (1), and ask it about ns8.yahoo.com and learn that com is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that yahoo.com is delegated to five name servers, including ns5.yahoo.com (3), so we ask that one and get the following answer:
Incoming mail for ns8.yahoo.com is handled by one mail server at .. We are missing the IP:s of one server: .. Ns8.yahoo.com has one IP number (202.165.104.22), which also has a corresponding reverse pointer.
Ns8.yahoo.com is hosted on a server in Asia/Pacific Region.
The mail server.
All of the about seventy domains that use the mail server . use only the mail server . (example: alpslab.com, axelprod.com and bandfm.com ).
The two name servers ns8 and ns9.yahoo.com together
All of the four domains that use the two name servers ns8 and ns9.yahoo.com together, hereafter referred to as "name server group 1", point only to the IP number 202.165.102.205 (example: cn.yahoo.com and yahoo.com.cn ).
The name server ns8.yahoo.com
Four of the nine domains that use the name server ns8.yahoo.com use name server group 1.
The mail server. Only
There are about seventy domains that only use the mail server ..