DNS delegation of ipn.mx updated: May 21, 2013 4:29:22 PM
Delegation
step
query
auth
servers
1
ipn.mx.
.
(a,d,i,k,c,m,e,h,g,f,l,j,b).root-servers.net.
2
ipn.mx.
mx.
(e,c,i,o,x,m).mx-ns.mx.
3
ipn.mx.
ipn.mx.
(dns1,dns3,dns2).ipn.mx.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about ipn.mx and learn that mx is delegated to six name servers (2), so we ask e.mx-ns.mx where we learn that ipn.mx is delegated to three name servers, including dns1.ipn.mx (3), so we ask that one and get the following answer:
Ipn.mx is a domain controlled by three domain name servers at ipn.mx themselves. All three of them are on different IP networks. Incoming mail for ipn.mx is handled by three mail servers at 103.31, ipn.mx and 103.32. We are missing the IP:s of two servers: 148.204.103.32 and 148.204.103.31. Ipn.mx has one IP number (148.204.103.231), but no corresponding reverse pointer.