Re: tcpdump script

[Jason Brvenik <jasonb () sourcefire com>]

You might want to check out daemonlogger instead. It is more
specifically designed for that purpose.

http://www.snort.org/users/roesch/Site/Daemonlogger/Daemonlogger.html

On Tue, Apr 7, 2009 at 7:07 PM, Jefferson, Shawn
<Shawn.Jefferson () bcferries com> wrote:
> Hi,
>
> I wanted to run tcpdump to capture all traffic on my snort sensor, so that
> if I want to go take a look at traffic based on snort alerts I could get
> more context.  I’ve setup a couple of scripts to gzip the packet captures
> and send them to a storage server.  My question is about starting tcpdump
> itself.  I tried doing it in the same script that starts snort and barnyard,
> but this didn’t seem to work and I think it’s due to the fact that tcpdump
> needs to be run as root (?).
>
> So, I’ve created a root cron job that runs every five minutes will start
> tcpdump if it finds it not running (using “pidof tcpdump”).
>
> Not being a linux guru, is this the right way to approach this problem?
>
> Thanks,
> Shawn
>
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