DNS delegation of s201b2.psmtp.com updated: Jun 19, 2013 7:57:43 PM
Delegation
step
query
auth
servers
1
s201b2.psmtp.com.
.
(l,c,f,g,k,j,d,i,a,h,e,b,m).root-servers.net.
2
s201b2.psmtp.com.
com.
(a,d,c,g,l,j,b,m,f,i,k,e,h).gtld-servers.net.
3
s201b2.psmtp.com.
psmtp.com.
(ns2,ns3,ns4,ns1).google.com.
We pick l.root-servers.net, one of the 13 root servers (1), and ask it about s201b2.psmtp.com and learn that com is delegated to 13 name servers (2), so we ask a.gtld-servers.net where we learn that psmtp.com is delegated to four name servers, including ns2.google.com (3), so we ask that one and get the following answer:
