mta-v2.mail.vip.ird.yahoo.com
DNS delegation of mta-v2.mail.vip.ird.yahoo.com updated: Jun 19, 2013 5:50:04 AM
Delegation
step query auth servers 1 mta-v2.mail.vip.ird.yahoo.com. . (b,g,l,e,h,k,j,f,i,a,c,d,m).root-servers.net. 2 mta-v2.mail.vip.ird.yahoo.com. com. (h,k,i,g,l,b,f,m,c,e,j,a,d).gtld-servers.net. 3 mta-v2.mail.vip.ird.yahoo.com. yahoo.com. (ns1,ns2,ns4,ns5,ns3).yahoo.com.
We pick b.root-servers.net , one of the 13 root servers (1), and ask it about mta-v2.mail.vip.ird.yahoo.com and learn that com is delegated to 13 name servers (2), so we ask h.gtld-servers.net where we learn that yahoo.com is delegated to five name servers, including ns1.yahoo.com (3), so we ask that one and get the following answer:
Authoritative answer
net. com. yahoo.com. ns5.yahoo.com. ns2.yahoo.com. ns1.yahoo.com. ns4.yahoo.com. ird.yahoo.com. ns3.yahoo.com. root-servers.net. gtld-servers.net. vip.ird.yahoo.com. m.root-servers.net. a.root-servers.net. g.gtld-servers.net. e.gtld-servers.net. j.root-servers.net. i.gtld-servers.net. f.gtld-servers.net. m.gtld-servers.net. k.gtld-servers.net. h.root-servers.net. d.root-servers.net. d.gtld-servers.net. i.root-servers.net. h.gtld-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. b.gtld-servers.net. f.root-servers.net. c.gtld-servers.net. c.root-servers.net. a.gtld-servers.net. b.root-servers.net. l.gtld-servers.net. j.gtld-servers.net. e.root-servers.net. mail.vip.ird.yahoo.com. mta-v2.mail.vip.ird.yahoo.com.
whois net whois com whois yahoo.com whois root-servers.net whois gtld-servers.net whois yahoo.com , yahoo.com yahoo.com The mail server. There are several thousand of domains that use the mail server . .
The mail server. Only There are several thousand of domains that only use the mail server . .
The IP number 77.238.177.9 There are three host names that point to the IP number 77.238.177.9 .
Two of those use only the mail server . . Two of them point only to that ip number. One of them point to the two IP numbers 77.238.177.9 and 188.125.69.79 together. The IP number 77.238.177.9 only All of the two host names that point to the IP number 77.238.177.9 only (but not 188.125.69.79 ) use only the mail server . .
robtex on mta-v2.mail.vip.ird.yahoo.com mta-v2.mail.vip.ird.yahoo.com mnw
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