Great Circle Associates Firewalls
(June 1996)

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Subject: Re: Ability To Track Logs
From: RHS Linux User <coy @ coy . com>
Date: Mon, 3 Jun 1996 18:14:54 -0500 (CDT)
To: ygerman <ygerman @ genre . com>
Cc: Firewalls <Firewalls @ GreatCircle . COM>
In-reply-to: <9606031534 . AA0078 @ grcstm-nx02 . genre . com>

On 3 Jun 1996, ygerman wrote:

> I am in a bind on how to accomplish something on our firewall.
> I would like to check the logs on the firewall continuosly looking for certain 
> fields and based on the fields initiate an action. The action will be mail to a 
> different address depending on the field found.
> Currently I am seting this up via a c shell script and doing a grep for certain 
> things every hour. The problem is I would like not to have to wait an hour. Has 
> anyone had any experience with this. Is there a way to accomplish this easier? 
> Please respond as soon as possible, thanks!

Have you considered Swatch (available at  
It watches a log file and takes an action when a pattern matches. 

Chip Coy   coy @
 coy .
"Do not mistake composure for ease." - Tuvok

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