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bortzmeyer/bnp-paribas.md

Created January 8, 2019 10:40
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BNP Paribas DNS issue
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bnp-paribas.md 
% blaeu-resolve -r 100 -c FR -q A mabanque.bnpparibas  


[159.50.187.79] : 48 occurrences 
[ERROR: SERVFAIL] : 7 occurrences 
[159.50.188.20] : 40 occurrences 
Test #18829701 done at 2019-01-08T10:35:16Z

But NS queries timeout :

% blaeu-resolve -r 100 -c FR -q NS mabanque.bnpparibas
[sns5.bnpparibas.net. sns6.bnpparibas.fr.] : 2 occurrences 
[ERROR: SERVFAIL] : 28 occurrences 
Test #18829714 done at 2019-01-08T10:36:02Z
@bortzmeyer
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Other tests :
https://zonemaster.net/result/1750559801237258 http://dnsviz.net/d/mabanque.bnpparibas/XDR-fQ/dnssec/ (their broken firewall blocks NS requests)

@bortzmeyer
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Still problems:

% blaeu-resolve -r 100 -c FR -q A mabanque.bnpparibas  
[159.50.187.79] : 16 occurrences 
[159.50.188.20] : 14 occurrences 
[ERROR: SERVFAIL] : 31 occurrences 
Test #18830323 done at 2019-01-08T12:28:24Z

@bortzmeyer
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The DNS problem gets serious:

% blaeu-resolve -r 100 -c FR -q A mabanque.bnpparibas  
[159.50.188.20] : 6 occurrences 
[ERROR: SERVFAIL] : 47 occurrences 
[159.50.187.79] : 14 occurrences 
Test #18830439 done at 2019-01-08T12:42:46Z

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