NAME¶
welf2dlf - convert firewall logs in WebTrends Enhanced Log Format to DLF
SYNOPSIS¶
welf2dlf file
DESCRIPTION¶
welf2dlf converts firewall logs in the WebTrends Enhanced Log Format into
the firewall DLF.
That format is defined at the following URL:
http://www.netiq.com/partners/technology/welf.asp
This converter also supports the SonicWall extensions.
A list of firewall products that supports that format can be found at the
following URL:
http://www.netiq.com/products/fwr/compatible.asp
IMPLEMENTATION NOTES¶
Since the firewall DLF only supports packet filters, not all records will be
mapped to DLF.
Dropped packets messages (those with a field msg="XXX packet dropped")
will be mapped to denied DLF packet. (As well as all msg="TCP connection
dropped" records). Those packets will have a length of 0 (that's a
limitation of the format which don't log that information on dropped packet).
Messages with a proto= field set will be interpretted as "permitted"
"packet". That's not exactly "right" because this message
really represent a "packets flow" and not a single packet.
Other records will be ignored.
You may use the welf_proxy service in the proxy superservice to extract proxy
level information from WELF logs.
EXAMPLES¶
To process a log as produced by WebTrends:
$ welf2dlf < welf.log
welf2dlf will be rarely used on its own, but is more likely called by
lr_log2report:
$ lr_log2report welf < /var/log/welf.log
THANKS¶
Mark D. Nagel, for giving feedback and supplying patches.
SEE ALSO¶
Lire::WELF(3)
welf_proxy2dlf(1)
AUTHORS¶
Francis J. Lacoste <flacoste@logreport.org>
VERSION¶
$Id: welf2dlf.in,v 1.14 2006/07/23 13:16:35 vanbaal Exp $
COPYRIGHT¶
Copyright (C) 2001 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.