Firewall Wizards mailing list archives

RE: tcpdump installation on unix firewall?


From: "Lee (Lockdown) Hughes" <lee () polestar co uk>
Date: Wed, 1 Sep 1999 09:54:53 +0100

Yeah, and then drop it at the bottom of the ocean, and encase it in lead
;-).
I always carry a laptop around with me with all the tools that I need for
sniffing,
not much good for remote admin though :-(. You should really look at
something
like www.nfr.net, as this is a self contained sniffing solution, and with
IDR modules,
you can tailor it for almost anything.
Cheers,
Lee

-----Original Message-----
From: Mason  Begley [SMTP:mbegley () concentric com]
Sent: Tuesday, August 31, 1999 7:27 PM
To:   'Siglite'; Andreas.Bolatzki () ch danzas com
Cc:   firewall-wizards () nfr net
Subject:      RE: tcpdump installation on unix firewall?

It doesn't matter really since tcpdump could be compiled offline and then
added by a hacker later. Something that could be used for added security
is
to move all the tools you'll need into a directory and encrypt that dir
with
triple-des and only unencrypt it when its needed.

Mason Begley
Concentric Network. 

 -----Original Message-----
From:         Siglite [mailto:siglite () criticalstop com] 
Sent: Saturday, August 28, 1999 12:57 AM
To:   Andreas.Bolatzki () ch danzas com
Cc:   firewall-wizards () nfr net
Subject:      Re: tcpdump installation on unix firewall?

I've never run a sniffer directly on the firewall.  However, I've found it
extremely usefull to have sniffers on both sides of it.  In fact, that's
generally the first place I go when I'm having a connectivity problem
through the firewall.  

/*-----------------------------------*/
/* I live with FEAR every day.       */
/* But, sometimes, she lets me RACE. */
/*-----------------------------------*/

KT Morgan
Network Engineer
Checkpoint Firewall-1 CCSA/CCSE
Microsoft MCP
Software Systems Group, Inc

On 27 Aug 1999 Andreas.Bolatzki () ch danzas com wrote:

Hi fw-wizards

Do you consider it an utterly bad idea to install a packet sniffer on a
firewall. (HP box running FW-1).
Why would I want to do this?
Perhaps you know this already: If sth. is not working it's either the
firewall or the network.
I need a tool to proove what's going on... Badly performing server, find
out what normal traffic is for an application (data volume, traffic
profile
for one request....) and more of this kind. 

Is there anybody out there... doing this?

Does it interfere with the FW-1 software?

Thanks,

Andy :-oe.


---
Andreas Bolatzki                                                   
DANZAS Management AG
Corporate IT Operations and Support                    
Muenchensteinerstr. 43
CH-4002 Basel, Switzerland
Tel. +41 (61) 319 8686,  Fax. +41 (61) 319 8866                 
 Internet: andreas.bolatzki () ch danzas com
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