DNS delegation of shosting.cz updated: May 20, 2013 12:18:12 AM
Delegation
step
query
auth
servers
1
shosting.cz.
.
(b,k,a,h,i,m,d,f,j,g,l,e,c).root-servers.net.
2
shosting.cz.
cz.
(f,b,d,a,c).ns.nic.cz.
3
shosting.cz.
shosting.cz.
(ns2,ns3,ns1).shosting.cz.
We pick b.root-servers.net, one of the 13 root servers (1), and ask it about shosting.cz and learn that cz is delegated to five name servers (2), so we ask f.ns.nic.cz where we learn that shosting.cz is delegated to three name servers, including ns2.shosting.cz (3), so we ask that one and get the following answer:
Shosting.cz is a domain controlled by three domain name servers at shosting.cz themselves. All three of them are on different IP networks. Incoming mail for shosting.cz is handled by two mail servers also at shosting.cz. Both are on different IP networks. Shosting.cz has one IP number (82.208.7.116), but the reverse is caesar.shosting.cz.
Half of the more than hundred host names that point only to the IP number 82.208.7.116 use the two mail servers caesar and ns2.shosting.cz together, hereafter referred to as "mail server group 4", (example: tencom.cz, svet-hokeje.cz and ckklic.cz ). Worth noting is that most of the domains that use mail server group 4 point only to the IP number 82.208.7.116.
The mail server ns2.shosting.cz
There are more than hundred domains that use the mail server ns2.shosting.cz.