DNS delegation of td-sts.ru updated: May 23, 2013 3:21:45 AM
Delegation
step
query
auth
servers
1
td-sts.ru.
.
(k,b,a,f,d,i,m,l,c,j,e,g,h).root-servers.net.
2
td-sts.ru.
ru.
(a,b,e,d,f).dns.ripn.net.
3
td-sts.ru.
td-sts.ru.
ns.noolab.ru. ns.noolab.com.
We pick k.root-servers.net, one of the 13 root servers (1), and ask it about td-sts.ru and learn that ru is delegated to five name servers (2), so we ask a.dns.ripn.net where we learn that td-sts.ru is delegated to two name servers, including ns.noolab.ru (3), so we ask that one and get the following answer:
Td-sts.ru is a domain controlled by two domain name servers at noolab.com and noolab.ru. Both are on different IP networks. Incoming mail for td-sts.ru is handled by one mail server at td-sts.ru themselves. We are missing the IP:s of one server: mx.td-sts.ru. Td-sts.ru has one IP number (81.1.214.99), but the reverse is ?.
