Snort mailing list archives

Re: Snort-users digest, Vol 1 #3813 - 6 msgs


From: "Arif OZGUR" <arif () islem com>
Date: Thu, 11 Dec 2003 09:37:06 +0200


----- Original Message -----
From: <snort-users-request () lists sourceforge net>
To: <snort-users () lists sourceforge net>
Sent: Thursday, December 11, 2003 6:05 AM
Subject: Snort-users digest, Vol 1 #3813 - 6 msgs


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Today's Topics:

   1. Snort, Mysql purging (Jack Snedecor)
   2. Database output (Erwin Van de Velde)
   3. Visual Basic excel graph (Mario Guerendo)
   4. Re: Snort, Mysql purging (Josh Berry)
   5. Re: Snort, Mysql purging (Frank Knobbe)
   6. src/snortman.tex (Ted Rolle)

--__--__--

Message: 1
From: Jack Snedecor <jsnedecor () geninfo com>
To: snort-users () lists sourceforge net
Date: Wed, 10 Dec 2003 18:11:18 -0500
Subject: [Snort-users] Snort, Mysql purging

New user....



I have installed snort, mysql and acid per the published instructions.
Works great.

I am by no means an expert at any of these though.

What I have not found is a method to purge the database on a regular
schedule.

I had a minor welchia virus this week that drove the database size way up.
Now

 acid is taking mins. to build pages.  Can someone point me in the right
direction?



Jack Snedecor

GiS

VP, Network Operations Group

-----Original Message-----
From: Sp0oKeR Labs [mailto:spooker () spooker com br]
Sent: Wednesday, December 10, 2003 6:47 PM
To: Grammer, Christopher S; snort-users () lists sourceforge net
Subject: Re: [Snort-users] Remote NIDS



At your snort.conf, in all sensors use:



output database: log, mysql, user=user_snort password=pass_snort
dbname=db_snort host=ip_server_mysql_acid



You can create the snort database with create_mysql at contrib/ directory
.

Best Regards,



Sp0oKeR

----- Original Message -----

From: Grammer, <mailto:christopher.grammer () eds com>  Christopher S

To: snort-users () lists sourceforge net
<mailto:snort-users () lists sourceforge net>

Sent: Wednesday, December 10, 2003 7:03 PM

Subject: [Snort-users] Remote NIDS



I am looking for a method to have remote NIDS log alerts to a central
SNORT/Acid box running MySQL and Redhat 9.0.

Anyone have a link for docs on this or recommendations?



Chris



--__--__--

Message: 2
From: Erwin Van de Velde <erwin.vandevelde () ua ac be>
To: snort-users () lists sourceforge net
Date: Thu, 11 Dec 2003 00:14:37 +0100
Subject: [Snort-users] Database output

Hi,

I'm using a postgresql database to store the output of my snort sensors,
but
what happens if the database is temporarily unavailable (for instance,
connecting fails due to a heavy load on network / database)? Does snort
keep
the queries for sending when database connectivity is restored? Or are
these
queries dropped?
In my opinion, storing these queries temporarily is the safest solution,
as we
must certainly log data when a severe attack on our network takes place...
And then chances are bigger that we can't connect to the database
immediately.
And does snort open a database connection for every query it sends? Or is
there some sort of persistent connection (for example one that times out
after 1 minute of inactivity, closing the connection then)...
I'd like to use SSL connections to the database, using stunnel, but
opening a
connection for every query would have severe consequences for network and
server.

Thanks in advance,

Erwin Van de Velde
Student of Antwerp University
Belgium



--__--__--

Message: 3
From: "Mario Guerendo" <m.guerendo () comcast net>
To: <snort-users () lists sourceforge net>
Date: Wed, 10 Dec 2003 18:31:16 -0500
Subject: [Snort-users] Visual Basic excel graph

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Hello everyone,



I have a little project, I am trying to have a script/program that would
data on attacks, Denial of Service attacks to be precise.  I would like to
dump the data in an excel spreadsheet and create pie chart /bar graph.
Anyone wiling to help?  I am willing to pay a few bucks for this.



Thx for the help.






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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have a little project, I am trying to have a
script/program that would data on attacks, Denial of Service attacks to =
be
precise. &nbsp;I would like to dump the data in an excel spreadsheet and =
create pie
chart /bar graph. &nbsp;Anyone wiling to help?&nbsp; I am willing to pay =
a few bucks for
this.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thx for the help.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>&nbsp;</span></font></p>

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--__--__--

Message: 4
Date: Wed, 10 Dec 2003 17:36:39 -0600 (CST)
Subject: Re: [Snort-users] Snort, Mysql purging
From: "Josh Berry" <josh.berry () netschematics com>
To: "Jack Snedecor" <jsnedecor () geninfo com>
Cc: snort-users () lists sourceforge net

I HIGHLY suggest NOT deleting the information.  I suggest having a
secondary archive db that you move stuff like Welchia too when you think
you don't need it anymore.  That way you can keep the data and free up
resources on your primary DB.  Then if you really need to delete the data
you can on the archive.

Acid provides a drop-down bar to allow you to delete any query you run but
if you really want to purge the DB then use a truncate table [table_name]
command in MySQL.

New user....



I have installed snort, mysql and acid per the published instructions.
Works great.

I am by no means an expert at any of these though.

What I have not found is a method to purge the database on a regular
schedule.

I had a minor welchia virus this week that drove the database size way
up.
Now

 acid is taking mins. to build pages.  Can someone point me in the right
direction?



Jack Snedecor

GiS

VP, Network Operations Group

-----Original Message-----
From: Sp0oKeR Labs [mailto:spooker () spooker com br]
Sent: Wednesday, December 10, 2003 6:47 PM
To: Grammer, Christopher S; snort-users () lists sourceforge net
Subject: Re: [Snort-users] Remote NIDS



At your snort.conf, in all sensors use:



output database: log, mysql, user=user_snort password=pass_snort
dbname=db_snort host=ip_server_mysql_acid



You can create the snort database with create_mysql at contrib/
directory
.

Best Regards,



Sp0oKeR

----- Original Message -----

From: Grammer, <mailto:christopher.grammer () eds com>  Christopher S

To: snort-users () lists sourceforge net
<mailto:snort-users () lists sourceforge net>

Sent: Wednesday, December 10, 2003 7:03 PM

Subject: [Snort-users] Remote NIDS



I am looking for a method to have remote NIDS log alerts to a central
SNORT/Acid box running MySQL and Redhat 9.0.

Anyone have a link for docs on this or recommendations?



Chris



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Thanks,
Josh Berry, CTO
LinkNet-Solutions
469-831-8543
josh.berry () linknet-solutions com



--__--__--

Message: 5
Subject: Re: [Snort-users] Snort, Mysql purging
From: Frank Knobbe <frank () knobbe us>
To: snort-users () lists sourceforge net
Cc: Jack Snedecor <jsnedecor () geninfo com>, Josh Berry
<josh.berry () netschematics com>
Date: Wed, 10 Dec 2003 17:56:46 -0600


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On Wed, 2003-12-10 at 17:36, Josh Berry wrote:
I HIGHLY suggest NOT deleting the information.  I suggest having a
secondary archive db that you move stuff like Welchia too when you think
you don't need it anymore.=20

I guess that all depends on your or your company's policy. You can dump
certain data. I routinely dump the contents of the DATA table for
certain signatures after a period of time. I don't see a reason to keep
the same exact content for, say, the SQL-Slammer in the DB. Other
content (IPHDR and friends) is archived. But certain ballast is dumped.

You need to consider the usefulness of the data. Will you ever go back
to data from IPHDR for an event that occurred a year ago?

Perhaps this thread can evolve into a DB/data retention policy thread.
To yell categorically "yes" or "no' is wrong. The correct answer is
"depends" :)

Cheers,
Frank


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--__--__--

Message: 6
Date: Wed, 10 Dec 2003 21:16:53 -0600 (CST)
From: Ted Rolle <ted () php net>
To: snort-users () lists sourceforge net
Subject: [Snort-users] src/snortman.tex

Where is src/snortman.tex?  It's mentioned in the Snort docs, but I've not
found it.  Even after a Google search.  Also is there an HTML version of
the docs with hyperlinking?

Thanks



--__--__--

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