Re: Double logging :(

["dorwin" <dorwin () swbell net>]

I'm on a test network that has no other
traffic. As a test I telneted the smtp server
and sent a single message. The resulting
session file has the message in it
exactly twice.

Dorwin

----- Original Message ----- 
From: "Erek Adams" <erek () snort org>
To: "Dorwin T. Shields, Jr." <dorwin () earthlink net>
Cc: <snort-users () lists sourceforge net>
Sent: Tuesday, August 12, 2003 12:56 PM
Subject: Re: [Snort-users] Double logging :(


> On Tue, 12 Aug 2003, Dorwin T. Shields, Jr. wrote:
>
> > I'm attempting to capture s mtp sessions in snort.
> > I capture to a binary file for efficiency then replay into
> > snort using options -de -r <file> -c <config>.
>
> Make life simpler.  Use mailsnarf from the dsniff toolkit [0].
>
> > My config file has only a few rules (if memory serves):
> >   frag2
> >   stream4: timeout 60
> >   stream4_reassembly: client only
> >   log tcp any any -> any 25 (session: printable;)
> >
> > I limit to port 25 during the capture.
> >
> > Every session file I get is twice as large as it should be. It looks
> > like everything is doubled. Is it something I'm doing or is
> > this broken? Also, I tried using version 1.9.1 and it did the same thing
> > on both linux and windows.
>
> Can you be a bit more clear?  Define "looks like everything is doubled".
> How do you know _what_ size the session file should be?  Are you
> accounting for the overhead of the pcap headers and file structure?
> Version won't matter since a pcap formatted file is a pcap formatted file.
>
> -----
> Erek Adams
>
>    "When things get weird, the weird turn pro."   H.S. Thompson
>
>
> [0] http://naughty.monkey.org/~dugsong/dsniff/
>
>
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