RE: what's the difference between alert_fast and alert_unified?

["Patrick Harper" <patrick () internetsecurityguru com>]

Yes, with barnyard 

-----Original Message-----
From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net] On Behalf Of zhaohui yin
Sent: Friday, October 21, 2005 8:32 PM
To: Matt Kettler
Cc: snort-users () lists sourceforge net
Subject: Re: [Snort-users] what's the difference between alert_fast and
alert_unified?

thanks.

I am use snort output to mysql ,  use unified output can transfer to
mysql input?

On 10/21/05, Matt Kettler <mkettler () evi-inc com> wrote:
> zhaohui yin wrote:
> > Hi all:
> >     I am confused the snort option about alert_fast /alert_unified,
> > and want to known in which mode ,snort will run fastest.
>
> unified is faster than alert_fast. "alert_fast" is a text-mode log for
alerts,
> and while it's fast for text mode, and much faster than alert_full, it's
still a
> text log.
>
> However, alert_unified is a binary format and you need to use barnyard to
> post-process the alerts into readable text. The unified binary format lets
snort
> dump the alerts to disk with an absolute minimum amount of overhead, as it
> doesn't need to look up the alert descriptions, etc when logging.
>
> >    I run snort with -b -A fast option, any suggestion?
>
> By using -b you're already getting some speed benefit, as your packet log
is
> binary. Unified would extend this and make both your packet and your alert
logs
> binary.


--
yinzhaohui


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