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bind9_query2dlf

Langue: en

Autres versions - même langue

Version: 2006-07-23 (debian - 07/07/09)

Section: 1 (Commandes utilisateur)

NAME

bind9_query2dlf - convert BIND9 querylogs to dlf

SYNOPSIS

bind9_query2dlf

DESCRIPTION

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.

We also support Bind 9.3 log file which uses a new date format (15-Jul-2002) instead of the old-syslog one.

EXAMPLE

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   is obsolete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
 
 

EXAMPLES

To process a log as produced by bind9:
  $ bind9_query2dlf < dns-query
 
 

bind9_query2dlf will be rarely used on its own, but is more likely called by lr_log2report:

  $ lr_log2report bind9_query < /var/log/dns-query
 
 

NOTES

Bind9 versions before 9.3 did not 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 pre-9.3 bind9. See Wytze's message of Fri, 28 Dec 2001 16:56:30 +0100 on bind9-workers@isc.org , archived at http://www.mail-archive.com/bind9-workers@isc.org/msg00501.html .

This type of logfiles is recognised by the script.

BIND 9.3 or later does offer full support for this logging feature. In addition, it logs view, signer and EDNS information, all of which will be ignored by this version of the script.

In a private discussion on Thu, 18 Jul 2002 07:55:22 +0200, Wytze wrote:

  This contains the "ISC-compatible" version of  the patch for getting a
  recursive/non-recursive request logged. ISC decided there should be a space
  between the type and the recursion indicator in the logfile, so be it.
 
 

If you want to have your BIND 9.2.1 to log in the ISC-compatible 9.3 style, apply this patch to your BIND sources:

  --- bin/named/query.c.org       Thu Mar 28 06:10:09 2002
  +++ bin/named/query.c   Wed Jul 17 08:14:41 2002
  @@ -3279,7 +3279,8 @@
          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
 
 

. This script understands both Wytze-style and ISC-style recursiveness indication.

THANKS

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

SEE ALSO

bind8_query2dlf(1), The bind9 online documentation, as distributed with BIND (but unfortunately not online at http://isc.org/ , you might like http://doc.mdcc.cx/doc/bind/html/logging.html though)

VERSION

$Id: bind9_query2dlf.in,v 1.7 2006/07/23 13:16:33 vanbaal Exp $ Copyright (C) 2001 Joost Bekkers <joost@jodocus.org>, Copyright (C) 2000, 2001, 2002 Stichting LogReport Foundation LogReport@LogReport.org

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program (see COPYING); if not, check with http://www.gnu.org/copyleft/gpl.html.

AUTHOR

Joost Bekkers <joost@jodocus.org>, based on Edwin Groothuis and Joost van Baal's work, now maintained by the LogReport team.
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-- Angelini, Éric