<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Good Day Mark,<div><br></div><div>I can confirm that it is unrelated. I am also currently unable to reproduce the error from some of my tests. </div><div><br></div><div>From what I know, DNSVIZ provides results from a single vantage point. I’ll reach out to them for traces so that we can narrow down exactly where the issue is. </div><div><br></div><div>Regards,</div><div>David </div><div><div><br><blockquote type="cite"><div>On 13 Oct 2023, at 18:25, Mark Elkins <mark@posix.co.za> wrote:</div><br class="Apple-interchange-newline"><div>
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<div><p>Don't know if this is the same thing but...</p><p><a class="moz-txt-link-freetext" href="https://dnsviz.net/d/alt.za/dnssec/">https://dnsviz.net/d/alt.za/dnssec/</a> is reporting DNS errors at
196.216.168.21 / ns-za.afrinic.net.<br>
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<ul>
<li>alt.za zone: The server(s) were not responsive to
queries over UDP. (196.216.168.21)</li>
<li>alt.za/A: No response was received from the server
over UDP (tried 12 times). (196.216.168.21,
UDP_-_NOEDNS_)</li>
<li>alt.za/NS: No response was received from the server
over UDP (tried 12 times). (196.216.168.21,
UDP_-_NOEDNS_)</li>
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<h3><span style="font-weight: normal;">UDP packets are being
blocked or similar....</span><br>
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<div class="moz-cite-prefix">On 2023/10/13 15:08, David Njuki wrote:<br>
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<blockquote type="cite" cite="mid:D625C57D-62A9-42F0-8F27-3AEC0518C1A5@afrinic.net">
<pre class="moz-quote-pre" wrap="">Hi Job,
Thanks for alerting us about this.
We’ve isolated and removed from DNS the unresponsive backend servers so as to further investigate the issue.
Regards,
David
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap="">On 13 Oct 2023, at 15:47, Job Snijders via DBWG <a class="moz-txt-link-rfc2396E" href="mailto:dbwg@afrinic.net"><dbwg@afrinic.net></a> wrote:
Dear group,
I'm seeing high error-rates for RDAP queries. Upon inspection, it turns
out some of the backend servers resolved via 'rdap.afrinic.net' are not
reachable:
196.192.115.23 (port 443 unreachable)
2001:42d0:2:601:0:0:0:23 (port 443 unreachable)
196.192.124.137 (certificate expired)
See <a class="moz-txt-link-freetext" href="https://www.ssllabs.com/ssltest/analyze.html?d=rdap.afrinic.net">https://www.ssllabs.com/ssltest/analyze.html?d=rdap.afrinic.net</a>
to test & for more information.
I'd recommend to either remove the problematic IPs from the round-robin
DNS, or resolve the underlaying issue. Thank you
Kind regards,
Job
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</blockquote>
<pre class="moz-quote-pre" wrap="">
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</pre>
</blockquote>
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<title></title><p>Mark James ELKINS - Posix Systems - (South) Africa<br>
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