mail3b.citco.com
DNS delegation of mail3b.citco.com updated: Jun 18, 2013 11:19:17 PM
Delegation
step query auth servers 1 mail3b.citco.com. . (k,c,l,d,j,f,g,i,h,e,m,a,b).root-servers.net. 2 mail3b.citco.com. com. (m,h,f,j,l,i,g,b,a,e,c,d,k).gtld-servers.net. 3 mail3b.citco.com. citco.com. (auth40,auth62).ns.uu.net.
We pick k.root-servers.net , one of the 13 root servers (1), and ask it about mail3b.citco.com and learn that com is delegated to 13 name servers (2), so we ask m.gtld-servers.net where we learn that citco.com is delegated to two name servers, including auth40.ns.uu.net (3), so we ask that one and get the following answer:
Authoritative answer
net. com. uu.net. citco.com. ns.uu.net. mail3b.citco.com. root-servers.net. auth62.ns.uu.net. auth40.ns.uu.net. gtld-servers.net. 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.
whois net whois com whois uu.net whois citco.com whois root-servers.net whois gtld-servers.net whois citco.com , citco.com citco.com The ten mail servers ftl1smtp02, gen0susm02, mail1a, mail1b, mail2a, mail2b, mail3a, mail3b, mail4a … There are two domains that use the ten mail servers ftl1smtp02 , gen0susm02 , mail1a , mail1b , mail2a , mail2b , mail3a , mail3b , mail4a and mail4b.citco.com together, hereafter referred to as "mail server group 1 ".
The nine mail servers mail1a, mail1b, mail2a, mail2b, mail3a, mail3b, mail4a, mail4b and mail5a.citc… All of the one domains that use the nine mail servers mail1a , mail1b , mail2a , mail2b , mail3a , mail3b , mail4a , mail4b and mail5a.citco.com together, hereafter referred to as "mail server group 2 ", use the seven name servers extdc01.citcoext.com , extdc02.citcoext.com , auth01.ns.uu.net , auth02.ns.uu.net , auth20.ns.uu.net , auth40.ns.uu.net and auth62.ns.uu.net together.
The eight mail servers mail1a, mail1b, mail2a, mail2b, mail3a, mail3b, mail4a and mail4b.citco.com … There are two domains that use the eight mail servers mail1a , mail1b , mail2a , mail2b , mail3a , mail3b , mail4a and mail4b.citco.com together, hereafter referred to as "mail server group 3 ".
The mail server mail3b.citco.com There are six domains that use the mail server mail3b.citco.com .
Two of those use mail server group 3 . Two of them use mail server group 1 . One of them use mail server group 2 . One of them point only to the IP number 77.246.128.32 . The IP number 77.246.130.90 There are three host names that point to the IP number 77.246.130.90 .
robtex on mail3b.citco.com mail3b.citco.com mnw
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