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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Ondrej !<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I think you found the answer !!! It seems that the problem is DNSSEC. The biopyrenees.net seems to have a dnssec sig :<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">dig @127.0.0.1 biopyrenees.net +dnssec +short<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">213.186.33.5<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">A 8 2 3600 20230414114926 20230315114926 1266 biopyrenees.net. uUm5BxSqUJFyBhFCkT20zcqD+VkxCOJ47KxDqzvLoaMLMPPwTLtxtseM /CW3hCeEAMGgxyGO/10N97jPLSTKZXlfrqC2DTgKbu27U7fE6gJtArRC LgIAv17ivw/mIyQT4WQzOLtJnCLc0wL/Ak3nHYG+eXV4CWmPVSPe9AXE
JFY=<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">If I add break-dnssec yes ; in my bind conf, it seems to works like I wanted to !!! Thanks. But what I don’t understand is why, when I use directly SrvA (server that have RPZ zone), it works ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Thanks for your time </span><span style="font-family:"Segoe UI Emoji",sans-serif;mso-fareast-language:EN-US">😉</span><span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Nath.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<b><span style="font-size:10.0pt;color:#1F4E79"><img width="131" height="41" style="width:1.3645in;height:.427in" id="Image_x0020_2" src="cid:image001.png@01D95CCA.505D6EF0" alt="cid:image002.png@01D7D25A.A81420E0"> </span></b><o:p></o:p></p>
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<b><span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F">Nathanaël BONIN</span></b><o:p></o:p></p>
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<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F">Ingénieur système Linux et supervision</span><o:p></o:p></p>
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<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F">DO-HDS </span><o:p></o:p></p>
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<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F">Tél. 05.67.69.72.95</span><o:p></o:p></p>
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<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F"><a href="mailto:bonin.n@mipih.fr">bonin.n@mipih.fr</a></span><span style="font-size:8.0pt;font-family:"Verdana",sans-serif"><o:p></o:p></span></p>
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<o:p> </o:p></p>
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<span style="font-size:8.0pt;font-family:"Verdana",sans-serif;color:#2B307F">2 Impasse Michel Labrousse, 31100 Toulouse</span><o:p></o:p></p>
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<p class="MsoNormal"> <span style="mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>De :</b> Ondřej Surý <ondrej@isc.org> <br>
<b>Envoyé :</b> mercredi 22 mars 2023 14:12<br>
<b>À :</b> BONIN Nathanael <BONIN.N@mipih.fr><br>
<b>Cc :</b> bind-users@lists.isc.org<br>
<b>Objet :</b> Re: RPZ answer me NXDOMAIN for some domain<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">look for break-dnssec in <a href="https://bind9.readthedocs.io/en/stable/reference.html#response-policy-zone-rpz-rewriting">https://bind9.readthedocs.io/en/stable/reference.html#response-policy-zone-rpz-rewriting</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">--<o:p></o:p></p>
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<p class="MsoNormal">Ondřej Surý — ISC (He/Him)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">On 22. 3. 2023, at 12:52, BONIN Nathanael <<a href="mailto:BONIN.N@mipih.fr">BONIN.N@mipih.fr</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Hi there,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">We are using RPZ zone for some times now, but recently we found a weird behavior from some domains. Let me explain !<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">We have 2 NS server : Recursive one (let’s call him SrvA) and one bebind (let’s call him SrvB, with global forwarder : SrvA ). My RPZ zone is on SrvA.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">If we took a little diagram, we have :<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">User ===== > SrvB ===== > SrvA ===== > Internet<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">If we create an A record tatata.google.com / 2.3.4.5 (that doesn’t exist at google.com) on RPZ zone :<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l2 level1 lfo3">On SrvA with : dig @localhost tatata.google.com we got IP : 2.3.4.5 => GREAT !<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l2 level1 lfo3">On SrvB with : dig @localhost tatata.google.com (that point on SrvA), we got IP : 2.3.4.5 => WONDERFUL !
<o:p></o:p></li></ol>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">BUT<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">If we create another A record sri.biopyrenees.net / 3.4.5.6 (that doesn’t exist at biopyrenees.net) on RPZ zone :<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<li class="MsoListParagraph" style="margin-left:0cm;mso-list:l2 level1 lfo3">On SrvA with : dig @localhost sri.biopyrenees.net, we got IP : 3.4.5.6 => YOUPI !<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0cm;mso-list:l2 level1 lfo3">On SrvB with : dig @localhost sri.biopyrenees.net, we got : NXDOMAIN => WHATTTT ?<o:p></o:p></li></ol>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Why for some domain, the RPZ isn’t working ?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">An exemple of what I wrote on my RPZ zone :<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">tatata.google.com A 2.3.4.5<o:p></o:p></p>
<p class="MsoNormal">sri.biopyrenees.net A 3.4.5.6<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Is it normal ? Is there a way to have the good answer on my SrvB ?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">With tcpdump, I see the same behavior with a record that works and with the record that doesn’t work…<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks for your help.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Nath. <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">-- <br>
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