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<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>
<ul style="margin-top:0cm" type="disc">
<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></ul>
<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>
<ul style="margin-top:0cm" type="disc">
<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></ul>
<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"><span style="mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:FR">Nath. </span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:FR"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:FR"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:FR"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:FR"> <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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