DNS delegation of star.rr-spb.ru updated: May 19, 2013 8:59:51 PM
Delegation
step
query
auth
servers
1
star.rr-spb.ru.
.
(c,f,e,h,b,a,k,i,g,d,j,l,m).root-servers.net.
2
star.rr-spb.ru.
ru.
(a,d,e,f,b).dns.ripn.net.
3
star.rr-spb.ru.
rr-spb.ru.
(ns1,ns2).r01.ru.
We pick c.root-servers.net, one of the 13 root servers (1), and ask it about star.rr-spb.ru and learn that ru is delegated to five name servers (2), so we ask a.dns.ripn.net where we learn that rr-spb.ru is delegated to two name servers, including ns1.r01.ru (3), so we ask that one and get the following answer: