Whois and reverse dns lookup provided by robtex


DNS delegation of polytechnique.fr updated:


2polytechnique.fr.fr.e.ext.nic.fr. g.ext.nic.fr. f.ext.nic.fr. d.nic.fr. d.ext.nic.fr.
3polytechnique.fr.polytechnique.fr.milou.polytechnique.fr. picaros.polytechnique.fr. ns2.nic.fr. rackham.polytechnique.fr.
We pick a.root-servers.net, one of the 13 root servers (1), and ask it about polytechnique.fr and learn that fr is delegated to five name servers (2), so we ask e.ext.nic.fr where we learn that polytechnique.fr is delegated to four name servers, including milou.polytechnique.fr (3), so we ask that one and get the following answer:

Authoritative answer

ANSWER for polytechnique.fr.
polytechnique.fr.86400SOAmilou.polytechnique.fr. hostmaster.polytechnique.fr. ( 2017011916 7200 3600 1209600 3600 )
86400TXT"v=spf1 ip4: ip4: mx ?all"
86400TXT"v=spf2.0/pra ip4: ip4: mx ?all"
86400 MX 10 mx-a.polytechnique.fr. polytechnique.fr use mx-a.polytechnique.fr as mail server.
86400 MX 10 mx-b.polytechnique.fr. polytechnique.fr use mx-b.polytechnique.fr as mail server.
86400 A129.104.30.29 polytechnique.fr points to
86400 NS milou.polytechnique.fr. polytechnique.fr use milou.polytechnique.fr as name server.
86400 NS rackham.polytechnique.fr. polytechnique.fr use rackham.polytechnique.fr as name server.
86400 NS picaros.polytechnique.fr. polytechnique.fr use picaros.polytechnique.fr as name server.
86400 NS ns2.nic.fr. polytechnique.fr use ns2.nic.fr as name server.
ADDITIONAL for polytechnique.fr.
mx-a.polytechnique.fr.86400 A129.104.30.14
mx-b.polytechnique.fr.86400 A129.104.30.15
ns2.nic.fr.172800 A192.93.0.4
milou.polytechnique.fr.86400 A129.104.30.41
picaros.polytechnique.fr.86400 A129.104.7.41
rackham.polytechnique.fr.86400 A129.104.32.41
ns2.nic.fr.172800 AAAA2001:660:3005:1::1:2
milou.polytechnique.fr.86400 AAAA2001:660:3026:1:0:30:30:41
picaros.polytechnique.fr.86400 AAAA2001:660:3026::7:7:41
rackham.polytechnique.fr.86400 AAAA2001:660:3026::32:32:41

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