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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi folks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have a question when I configured RPZ in BIND9.10.3-p4. I try to trigger a event to response a specific AAAA address when the response contain a CNAME but no IPv6 address. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have this requirement because some website domain support AAAA but their CDN¡¯s DNS does not return AAAA . They are facing the problem to choose to give up IPv6 with CDN support or give up CDN running they own DNS. My thought is to use RPZ in their authority DNS to response a specific AAAA if CNAME is given in the response to AAAA query. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Or, maybe I can configure the RPZ behave like that it can passthru any qtype but AAAA, so that RPZ will only response the AAAA and leave other queries to the original response. I don¡¯t know how to make it with RPZ. If not, maybe I need to use dnsdist to hack on path.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Any ideas? thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Davey<o:p></o:p></span></p></div></body></html>