Snort mailing list archives

Re: Snort-users Digest, Vol 45, Issue 10


From: Willst Mail <willstmail () gmail com>
Date: Thu, 4 Feb 2010 18:36:17 -0500

In response to Shawn Jefferson re: barnyard2,
The questioner mentions he wants to log to a remote syslog as well as local.
 Except on Windows, barnyard2 does not support sending syslog to a remote
host but instead relies on logging locally and having the local syslog
server forward the message on barnyard2's behalf.

Speaking of which, might the original poster try configuring local syslog to
forward messages to the remote host at least as a troubleshooting step to
ensure communication in general works between the two hosts?

------------------------------

Message: 3
Date: Thu, 4 Feb 2010 09:54:02 -0700
From: "Jefferson, Shawn" <Shawn.Jefferson () bcferries com>
Subject: Re: [Snort-users] Barnyard Not Outputting to Syslog
To: infosec posts <infosec.posts () gmail com>,
       "snort-users () lists sourceforge net"
       <snort-users () lists sourceforge net>
Message-ID:

 <D05BDFB6A6F4EE43ABE62D1A7170AF37128159E122 () HEXBCFMBVS01 exchange bcferries corp


Content-Type: text/plain; charset="us-ascii"

I suggest you go to Barnyard2, it is currently supported and being
developed.

I had a similar setup once (I'm now using Barnyard2), and I believe you
actually have to run two instances of barnyard, since barnyard doesn't seem
to be able to send alerts to two different locations (that's my recollection
anyway, as I said, now I'm using Barnyard2, and it definitely will do what
you want.)



-----Original Message-----
From: infosec posts [mailto:infosec.posts () gmail com]
Sent: Thursday, February 04, 2010 8:07 AM
To: snort-users () lists sourceforge net
Subject: [Snort-users] Barnyard Not Outputting to Syslog

I have a snort/barnyard implementation that has been sending alerts to
a remote mysql instance since its inception.  Now, I would like to
also have barnyard send alerts to syslog.  I've reviewed the setup
guides at snort.org and what documenation or pointers I can find via
google, but I haven't come up with any information that is helping me
to correct the issue.

When I enable the syslog output directly in the snort conf, with the
same string I'm using in the barnyard.conf, I get syslog entries
as/where expected, so my local syslog is working fine.  I've tried the
configuration below, using alert_syslog with a remote syslog server,
and also using barnyard's alert_syslog2 plugin both locally and
remotely, but barnyard just doesn't seem to fire anything off to
syslog (when using alert_syslog2, tcpdump on the snort box shows no
traffic attempting to go to the remote machine).  I have continued to
receive events to the remote mysql instance in all of these syslog
test configurations.

====barnyard.conf====
output alert_syslog: LOG_LOCAL4 LOG_ALERT

====snort.conf====
output alert_unified: filename snort.alert, limit 128
output log_unified: filename snort.log, limit 128

====syslog.conf====
#test section for snort
local4.*
 /var/log/snort-sl-log

====barnyard run string====
 /usr/local/bin/barnyard -c /etc/snort/barnyard.conf -d /var/log/snort
-w /etc/snort/waldo2 -f snort.log


I'm probably missing something minor/obvious, but I'm stumped, so I'd
appreciate any assistance.

Thanks.


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