Frequent timeout
Carl Byington
carl at byington.org
Mon Sep 3 00:02:45 UTC 2018
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On Sat, 2018-09-01 at 23:45 -0400, Alex wrote:
> (71.161.85.209.hostkarma.junkemailfilter.com): query failed (SERVFAIL)
> (71.161.85.209.bl.score.senderscore.com): query failed (SERVFAIL)
> When trying to resolve any of these manually, it just returns
> NXDOMAIN.
What does
dig -4 71.161.85.209.hostkarma.junkemailfilter.com +trace +nodnssec
show, and it is consistently NXDOMAIN? That ends here with:
71.161.85.209.hostkarma.junkemailfilter.com. 2100 IN A 127.0.0.3
71.161.85.209.hostkarma.junkemailfilter.com. 2100 IN A 127.0.1.1
;; Received 93 bytes from 184.105.182.249#53(rbl1.junkemailfilter.com)
in 20 ms
> I also isolated a packet with the "server failure" information, but
> I'm unable to figure out what the data means. Would someone be
> interested in evaluating it for me? It's a 146-byte pcap file.
> https://drive.google.com/open?id=1Ui893Lg61psZCR8I_9SJtNqs-Sil_br
That is just the reply from bind to some other process running on the
same machine, reporting the server failure.
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