IptablesDlfConverter(3pm)                       LogReport's Lire Documentation


NAME
       IptablesDlfConverter - convert netfilter/iptables syslog logs to
       firewall DLF

DESCRIPTION
       IptablesDlfConverter converts Linux 2.4 iptables packet log into
       firewall DLF format.

LIMITATIONS
       The netfilter logging modules don't log the status of the packet (drop,
       accept, reject) like the ipchains logging code. You can specify a
       prefix that will be used in the log. This converter will mark the
       packet as 'denied' whenever that prefix matches (case insensitive) the
       following regex: 'denied|deny|drop|reject|unallowed', it will mark the
       packet as 'permitted' whenever that prefix matches (case insensitive)
       the following regex: 'accept|permit', and all other packets will have
       '-' as the value of the 'action' field.

       So in order for this converter to detect 'denied' packets, you should
       use a prefix containing one of those substrings.

       For example:

        iptables -N lodrop
        iptables -A logdrop -j LOG --log-prefix "Packet-DENY: "
        iptables -A logdrop -j DROP

       or other similar prefixes: 'denied: ', 'Packet-REJECT: ', ...

       The prefix used will end up in the 'rule' field of the DLF record.

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

        $ lr_log2report iptables < /var/log/iptables.log > report

SEE ALSO
       The Netfilter webpage at http://netfilter.samba.org/ .

AUTHORS
       Francis J. Lacoste <flacoste@logreport.org>

VERSION
       $Id: IptablesDlfConverter.pm,v 1.12 2006/07/23 13:16:35 vanbaal Exp $

COPYRIGHT
       Copyright (C) 2001, 2002, 2003, 2004 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.

Lire 2.1.1                        2020-07-07         IptablesDlfConverter(3pm)