DNS delegation of d.vu updated: May 19, 2013 4:03:41 PM
Delegation
step
query
auth
servers
1
d.vu.
.
(b,a,d,k,j,f,e,m,c,l,g,h,i).root-servers.net.
2
d.vu.
vu.
(efate,futuna,santo,maringo).vanuatu.com.vu.
3
d.vu.
d.vu.
(ns2,ns1).vidahost.com.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about d.vu and learn that vu is delegated to four name servers (2), so we ask efate.vanuatu.com.vu where we learn that d.vu is delegated to two name servers, including ns2.vidahost.com (3), so we ask that one and get the following answer:
D.vu is a domain controlled by two domain name servers at vidahost.com. Both are on different IP networks. Incoming mail for d.vu is handled by five mail servers at googlemail.com and google.com having a total of 48 IP numbers. There are 14 duplicated IP numbers. Some of them are on the same IP network. D.vu has one IP number (188.65.113.171), but the reverse is ipswich.footholds.net.
There are more than hundred host names that point only to the IP number 188.65.113.171.
Two thirds of those use the two name servers ns1 and ns2.vidahost.com together, hereafter referred to as "name server group 1", (example: apairltd.com, beermole.com and belrespiro.com ). Worth noting is that seven percent of the domains that use name server group 1 point only to the IP number 188.65.113.171.