mail.ptsc.com.vn
DNS delegation of mail.ptsc.com.vn updated: May 24, 2013 5:32:53 PM
Delegation
step query auth servers
1 mail.ptsc.com.vn. . (h,g,j,f,e,a,d,l,c,k,i,b,m).root-servers.net. 2 mail.ptsc.com.vn. vn. f.dns-servers.vn. vn.cctld.authdns.ripe.net. b.dns-servers.vn. a.dns-servers.vn. d.dns-servers.vn. c.dns-servers.vn. e.dns-servers.vn. 3 mail.ptsc.com.vn. ptsc.com.vn. (dns1,dns2).fpt.vn.
We pick h.root-servers.net , one of the 13 root servers (1), and ask it about mail.ptsc.com.vn and learn that vn is delegated to seven name servers (2), so we ask f.dns-servers.vn where we learn that ptsc.com.vn is delegated to two name servers, including dns1.fpt.vn (3), so we ask that one and get the following answer:
Authoritative answer
vn. net. com.vn. fpt.vn. ripe.net. ptsc.com.vn. dns2.fpt.vn. dns1.fpt.vn. dns-servers.vn. c.dns-servers.vn. e.dns-servers.vn. root-servers.net. f.dns-servers.vn. mail.ptsc.com.vn. d.dns-servers.vn. a.dns-servers.vn. b.dns-servers.vn. authdns.ripe.net. m.root-servers.net. a.root-servers.net. j.root-servers.net. h.root-servers.net. d.root-servers.net. i.root-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. f.root-servers.net. c.root-servers.net. b.root-servers.net. e.root-servers.net. cctld.authdns.ripe.net. vn.cctld.authdns.ripe.net.
whois vn whois net whois com.vn whois fpt.vn whois ripe.net whois dns-servers.vn whois root-servers.net
whois com.vn , com.vn domain info api com.vn robtex on mail.ptsc.com.vn RBL listing of mail.ptsc.com.vn mnw
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