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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have DoT & DNSSEC all set up and working and was carrying out some tests to ensure that the server and the forward servers (Cloudflare) was working as I expected. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>To that end I was using this test:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="https://www.grc.com/dns/dns.htm">https://www.grc.com/dns/dns.htm</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>down the page you will see a button:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>“Initiate standard DNS spoofability test”<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When run, it carries out the test and returns results. If however you try using Dig or even a browser while the test is running nothing will function, Unbound is unresponsive.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>After the test returns you still have to wait some time before Unbound recovers and is once again useable.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am on Windows 10/64 (B18363.900-V1909) with an Intel Core i7 4930K @ 3.40GHz Ivy Bridge-E 22nm with 32GB Memory. Using Unbound v1.10.1<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>When I run the same test without DoT to the same forward servers everything seems to be OK and there is no hang or unresponsiveness.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I appreciate that there is much more TCP traffic when using DoT but should Unbound become unresponsive?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Is this an Unbound problem or something that I can resolve in the configuration?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ray<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>