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Re: Barnyard2 process quits when Output:alert_bro is enabled

From: SnortFan <SnortFan () yahoo com>
Date: Wed, 22 Jan 2014 14:47:26 -0500
Hi Jeremy,
    Try the barnyard2-users () googlegroups com list. Like this one you will need to join. The developers for barnyard2 
monitor that list and have helped me out in the past.  

Best of luck,
Ed


Sent from a mobile device. 


On Jan 21, 2014, at 3:04 PM, Jeremy Cox <jeremy.cox () washk12 org> wrote:

There is one error in the syslog:

Jan 21 13:02:48 ids kernel: [417909.308741] barnyard2[22481]: segfault at 10 ip 0000000000423d28 sp 00007fff631c93c0 
error 4 in barnyard2[400000+46000]



Any help would be greatly appreciated!

Thanks,

Jeremy


Jeremy Cox
Senior Network Engineer, ISO
Washington County School District
121 W Tabernacle - St. George - UT
435-634-4315
www.washk12.org
687474703a2f2f7777772e7375706572746563686775792e636f6d

IMPORTANT NOTICE REGARDING THIS ELECTRONIC COMMUNICATION:

This e-mail, including any attachments thereto, contains information that may be confidential or privileged, and is 
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please notify the originator of this e-mail immediately and destroy all information received.  Thank you.



On Fri, Jan 17, 2014 at 2:33 PM, Jeremy Cox <jeremy.cox () washk12 org> wrote:
Anytime I enable the Bro2 alert in the Barnyard2 Config file, Barnyard2 starts right up and runs the standard 
checks, looks like it will start working and then suddenly stops without any warning message whatsoever.



For example:


sudo barnyard2 -c /etc/suricata/barnyard2.conf -d /mnt/iscsi/suricata/log -f unified2.alert -w 
/mnt/iscsi/suricata/log/suricata.waldo -vvv


Running in Continuous mode



        --== Initializing Barnyard2 ==--

Initializing Input Plugins!
Initializing Output Plugins!
Parsing config file "/etc/suricata/barnyard2.conf"
Log directory = /var/log/barnyard2
alert_bro Connecting to Bro (10.0.67.186:47762)...done.


        --== Initialization Complete ==--


  ______   -*> Barnyard2 <*-
 / ,,_  \  Version 2.1.9 (Build 263)
 |o"  )~|  By the SecurixLive.com Team: http://www.securixlive.com/about.php
 + '''' +  (C) Copyright 2008-2010 SecurixLive.


           Snort by Martin Roesch & The Snort Team: http://www.snort.org/team.html
           (C) Copyright 1998-2007 Sourcefire Inc., et al.


Using waldo file '/mnt/iscsi/suricata/log/suricata.waldo':
    spool directory = /mnt/iscsi/suricata/log
    spool filebase  = unified2.alert
    time_stamp      = 1389914653
    record_idx      = 25442
Opened spool file '/mnt/iscsi/suricata/log/unified2.alert.1389914653'



The process stops at this point.  If I compile Barnyard2 with debugging enabled I get this:


sudo barnyard2 -c /etc/suricata/barnyard2.conf -d /mnt/iscsi/suricata/log -f unified2.alert -w 
/mnt/iscsi/suricata/log/suricata.waldo -v -e


Running in Continuous mode


        --== Initializing Barnyard2 ==--
Initializing Input Plugins!
Initializing Output Plugins!
Parsing config file "/etc/suricata/barnyard2.conf"
Log directory = /var/log/barnyard2
alert_bro Connecting to Bro (10.0.67.186:47762)...done.
-------------------------------------------------
 Keyword     |          Input @
-------------------------------------------------
unified2     : init() = 0x4314c6
unified2     :   - readRecordHeader() = 0x431539
unified2     :   - readRecord()       = 0x4316f8
-------------------------------------------------

-------------------------------------------------
 Keyword     |          Output @
-------------------------------------------------
alert_syslog :       0x4267fb
log_tcpdump  :       0x4291b3
database     :       0x42cd13
alert_fast   :       0x425419
alert_full   :       0x426021
alert_unixsock:       0x427da3
alert_csv    :       0x4240e0
log_null     :       0x429097
log_ascii    :       0x428413
alert_bro    :       0x423773
alert_test   :       0x427627
platypus     :       0x42a058
sguil        :       0x42bc14
-------------------------------------------------



        --== Initialization Complete ==--


  ______   -*> Barnyard2 <*-
 / ,,_  \  Version 2.1.9 (Build 263) DEBUG
 |o"  )~|  By the SecurixLive.com Team: http://www.securixlive.com/about.php
 + '''' +  (C) Copyright 2008-2010 SecurixLive.


           Snort by Martin Roesch & The Snort Team: http://www.snort.org/team.html
           (C) Copyright 1998-2007 Sourcefire Inc., et al.

Using waldo file '/mnt/iscsi/suricata/log/suricata.waldo':
    spool directory = /mnt/iscsi/suricata/log
    spool filebase  = unified2.alert
    time_stamp      = 1389914653
    record_idx      = 25443
Opened spool file '/mnt/iscsi/suricata/log/unified2.alert.1389914653'
IP Len field is 6 bytes smaller than captured length.
    (ip.len: 40, cap.len: 46)
IP Len field is 6 bytes smaller than captured length.
    (ip.len: 40, cap.len: 46)
IP Len field is 6 bytes smaller than captured length.
    (ip.len: 40, cap.len: 46)


The important section of the Barnyard Config file looks like this:


input unified2                                                                                                       
                     
output alert_bro: 10.0.67.186:47762
output alert_fast: stdout


If I comment out the "output alert_bro: 10.0.67.186:47762" then Barnyard executes as expected and I see the Fast 
Alerts scroll on the screen.


Jeremy Cox
Senior Network Engineer, ISO
Washington County School District
121 W Tabernacle - St. George - UT
435-634-4315
www.washk12.org
687474703a2f2f7777772e7375706572746563686775792e636f6d

IMPORTANT NOTICE REGARDING THIS ELECTRONIC COMMUNICATION:

This e-mail, including any attachments thereto, contains information that may be confidential or privileged, and is 
intended solely for the individual or entity to whom it is addressed.  Recipient is hereby notified that any 
disclosure, copying or distribution of this message is strictly prohibited.  IF YOU ARE NOT THE INTENDED RECIPIENT, 
please notify the originator of this e-mail immediately and destroy all information received.  Thank you.


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