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<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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<div class="errors">
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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>
</ul>
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<div id="dnssec-legend">
<h3><span style="font-weight: normal;">UDP packets are being
blocked or similar....</span><br>
</h3>
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<div class="moz-cite-prefix">On 2023/10/13 15:08, David Njuki wrote:<br>
</div>
<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
_______________________________________________
DBWG mailing list
<a class="moz-txt-link-abbreviated" href="mailto:DBWG@afrinic.net">DBWG@afrinic.net</a>
<a class="moz-txt-link-freetext" href="https://lists.afrinic.net/mailman/listinfo/dbwg">https://lists.afrinic.net/mailman/listinfo/dbwg</a>
</pre>
</blockquote>
<pre class="moz-quote-pre" wrap="">
_______________________________________________
DBWG mailing list
<a class="moz-txt-link-abbreviated" href="mailto:DBWG@afrinic.net">DBWG@afrinic.net</a>
<a class="moz-txt-link-freetext" href="https://lists.afrinic.net/mailman/listinfo/dbwg">https://lists.afrinic.net/mailman/listinfo/dbwg</a>
</pre>
</blockquote>
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<p>Mark James ELKINS - Posix Systems - (South) Africa<br>
<a class="moz-txt-link-abbreviated" href="mailto:mje@posix.co.za">mje@posix.co.za</a> Tel: <a href="tel:+27826010496">+27.826010496</a><br>
For fast, reliable, low cost Internet in ZA: <a
href="https://ftth.posix.co.za">https://ftth.posix.co.za</a><br>
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src="cid:part3.6510EC50.3F72597D@posix.co.za" alt="Posix
Systems" width="250" height="165"><img moz-do-not-send="false"
src="cid:part4.71D62609.BE8C9A8E@posix.co.za" alt="VCARD for
MJ Elkins" title="VCARD, Scan me please!" width="164"
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