<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">BIND 9 isn’t setup to log these. They will fall under the stats counter mismatch but that also captures (some) duplicate responses and late responses.<div>This filters out is/address pairs that named is not expecting. The question section is tested later. </div><div><div><br></div><div>Dig will report these so you can test servers that you believe are broken. <br><div><div><div dir="ltr">-- <div>Mark Andrews</div></div><div dir="ltr"><br><blockquote type="cite">On 2 Sep 2020, at 05:25, Andreas Ott <andreas@naund.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 31, 2020 at 8:00 PM P Vixie <<a href="mailto:paul@redbarn.org">paul@redbarn.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">[...] the observation that something</blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
bad is not happening to somebody doesn't mean it's not happening to anybody.<br>
</blockquote><div><br></div><div>May I please ask an operational question to experts: though I am only running a small number of authoritative and recursive servers, I am coming up short looking up what logging I need to turn on in BIND 9.16 and what logged strings I need to parse out to see responses coming from a different IP? I have various log channels enabled per the BIND logging "FAQ" but either I am missing config bits or the problem does not occur (on my servers). This is in a network lab setup and I am able to share data.</div><div><br></div><div>Thanks, andreas</div></div></div>
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