bind9-query2dlf1

Usage

Overview

bind9-query2dlf expects BIND 9 query log files on stdin.

If you have a

        channel query_logging {
                file "/var/log/named_querylog"
                versions 3 size 100M;
                print-time yes;                 // timestamp log entries
        };

in your named.conf, the produced logfiles are supported. Optionally, you could add

                print-category yes;             // print category name
                print-severity yes;             // print severity level

to this channel. Query logs as produced by a patched BIND (see NOTES below) are supported too.

Examples

With print-time, print-category and print-severity set:

 Feb 25 11:09:43.651 queries: info: client 10.0.0.3#1035:
  query: 3.example.com.nl IN A
 Feb 25 11:09:48.739 queries: info: client 10.0.0.3#1035:
  query: 3.example.com.nl IN A
 Feb 25 12:50:32.476 queries: info: client 10.0.0.3#1035:
  query: 21.example.com.co.uk IN A
 Feb 25 12:50:34.110 queries: info: client 10.0.0.3#1035:
  query: 22.example.com IN A
 Feb 25 12:50:34.525 lame-servers: info: lame server on
  '22.example.com' (in '23.example.com'?): 10.0.0.4#53
 Feb 25 12:50:34.715 queries: info: client 10.0.0.3#1035:
  query: 24.example.com IN A
 Feb 26 07:30:08.211 queries: info: client 10.0.0.1#1050:
  query: 1.0.0.10.in-addr.arpa IN PTR
 Feb 26 12:26:55.455 queries: info: client 10.0.0.1#1051:
  query: 28.example.com.nl IN MX
 Feb 04 04:02:00.932 general: info: loading configuration
  from '/etc/336.example.com'
 Feb 18 04:02:01.023 security: warning: zone
  '337.example.com.nl' allows updates by IP address, which
  is insecure
 Feb 18 04:02:01.049 config: warning: option 'use-id-pool'
  is obsolete
 Feb 18 04:02:01.049 config: warning: option 'check-names'
  is not implemented
 Feb 18 04:02:01.049 config: warning: option
  'statistics-interval' is not yet implemented
 Feb 18 04:02:01.049 network: info: no IPv6 interfaces found
 Feb 04 16:47:18.289 security: info: client 10.0.0.201#137:
  query denied
 Feb 20 07:26:53.731 general: info: running
 Feb 13 08:01:56.138 general: info: shutting down
 Feb 13 08:01:56.140 network: info: no longer listening on
  10.0.0.3#53
 Feb 14 08:02:13.983 general: info: refresh_callback: zone
  384.example.com/IN: failure for 10.0.0.204#53: timed out

With only print-time set:

 Aug 27 04:07:13.361 client 127.0.0.1#3123: query: foo.com IN ANY
 Aug 27 04:07:13.438 client 127.0.0.1#3123: query: fu.bar.nl IN AAAA
 Aug 27 04:07:13.443 client 127.0.0.1#3123: query: fu.bar.nl IN A

Notes

Bind9 doesn't log wether the query was recursive, therefore the last dlf field (DLF_RESOLVER) is a '-'. However, applying this patch by Wytze van der Raay:

 # patch bin/named/query.c to log recursive/non-recursive query indication
 SRC=bin/named/query.c
 if [ -f ${SRC}.org ]
 then
         echo "Patched ${SRC} already in place"
 else
         echo "Patch ${SRC} for recursive/non-recursive query indication"
         cp -p ${SRC} ${SRC}.org
         patch -p0 ${SRC} <<\!
 --- bin/named/query.c.org       Mon Sep 24 22:57:48 2001
 +++ bin/named/query.c   Tue Sep 25 09:55:21 2001
 @@ -3272,7 +3272,8 @@
         dns_rdatatype_format(rdataset->type, typename, sizeof(typename));

         ns_client_log(client, NS_LOGCATEGORY_QUERIES, NS_LOGMODULE_QUERY,
 -                     level, "query: %s %s %s", namebuf, classname, typename);
 +                     level, "query: %s %s %s%s", namebuf, classname, typename,
 +                     WANTRECURSION(client) ? "+" : "-");
  }

  void
 !
 fi

will yield loglines like

 Nov 11 12:06:42.829 queries: info: client 10.0.0.1#3664:
   query: 6.example.com.nl IN A+

A '+' indicates a recursive query, - indicates a non-recursive query, the lack of + or - indicates a non-patched bind9. See Wytze's message of Fri, 28 Dec 2001 16:56:30 +0100 on [email protected] , archived at http://www.mail-archive.com/[email protected]/msg00501.html .

This type of logfiles is recognised by the script.

Thanks

Wytze van der Raay, for supplying the BIND 9 query log patch.

Version

$Id: bind9-query2dlf.in,v 1.23 2002/01/11 14:58:51 vanbaal Exp $