Hello,
One more thought - This behaviour didn't happen with bind 9.9 - on CentOS 7.
Best regards,
Olaf Frączyk
NAVI Sp. z o.o.
Promienista 5/1
60-288 Poznań
mobile: +48609769035
phone: +48616622881
fax: +48616622882
http://www.navi.pl
On 2020-10-04 01:39, Olaf Frączyk wrote:
Hello,
I'm running bind on CentOS 8:
bind-9.11.13-6.el8_2.1.x86_64
From time to time I get SERVFAIL responses.
When the client queries second time, it gets the answer, so this are
transient errors. I don't see any pattern for them.
This happens probably a few times a day - enough to make it annoying
in long term. The worst is on Windows clients, as they need to do
"ipconfig /flushdns".
However I don't know the cause, running debug I got this:
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: query failed (SERVFAIL) for piekielni.pl/IN/A at
../../../bin/named/query.c:9385
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: error
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: send
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: sendto
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: senddone
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: next
client @0x7fcb50128510 192.168.217.121#34656 (piekielni.pl): view
internaldns-view: endrequest
fetch completed at ../../../lib/dns/resolver.c:2870 for piekielni.pl/A
in 0.707553: failure/success
[domain:piekielni.pl,referral:2,restart:1,qrysent:0,timeout:0,lame
:0,quota:0,neterr:0,badresp:0,adberr:0,findfail:2,valfail:0]
Why qrysent is 0, but findfail 2?
I'm not very familiar with the output, maybe someone could explain me
what is happening.
Best regards,
Olaf Frączyk
--
NAVI Sp. z o.o.
Promienista 5/1
60-288 Poznań
mobile: +48609769035
phone: +48616622881
fax: +48616622882
http://www.navi.pl
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