Logging SERVFAIL Errors
Barry Finkel
b19141 at anl.gov
Fri Oct 8 16:39:11 UTC 2010
Am Fri, 8 Oct 2010 09:09:16 -0500 (CDT)
schrieb b19141 at anl.gov (Barry Finkel):
>> On BIND 9.7.1-P2 I have in named.conf:
>>
>> channel query-errors-log {
>> file "/var/log/named.query-errors.log" versions 3 size
>> 200k; print-category yes;
>> print-severity yes;
>> print-time yes;
>> severity info;
>> };
>>
>> category query-errors { query-errors-log; }; // no
>> default_syslog
>>
>> Is this correct for logging queries that produce SERVFAIL?
>>
>> I ran this query on the DNS server:
>>
>> dns# dig klyuniv.ernet.in @t1dns2.anl.gov
>>
>> ; <<>> DiG 9.7.1-P2 <<>> klyuniv.ernet.in @t1dns2.anl.gov
>> ;; global options: +cmd
>> ;; Got answer:
>> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 7278
>> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
>>
>> ;; QUESTION SECTION:
>> ;klyuniv.ernet.in. IN A
>>
>> ;; Query time: 1860 msec
>> ;; SERVER: 130.202.101.37#53(130.202.101.37)
>> ;; WHEN: Fri Oct 8 09:06:04 2010
>> ;; MSG SIZE rcvd: 34
>>
>> dns#
>>
>> and there is nothing logged in
>>
>> /var/log/named.query-errors.log
>>
>> Am I doing something wrong? Thanks.
and Torsten <toto at the-damian.de> replied:
>You have to set a debug level of at least 1 to capture SERVFAIL errors
>in your logfile.
I did
./rndc trace
and re-issued my query. There was nothing in the
/var/log/named.query-errors.log
log. I then did another "trace" command to increase the debug level to
2, and a subsequent query command put nothing in the log.
----------------------------------------------------------------------
Barry S. Finkel
Computing and Information Systems Division
Argonne National Laboratory Phone: +1 (630) 252-7277
9700 South Cass Avenue Facsimile:+1 (630) 252-4601
Building 240, Room 5.B.8 Internet: BSFinkel at anl.gov
Argonne, IL 60439-4828 IBMMAIL: I1004994
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