Re: Automatic blocking with OpenBSD's pf dynamic rules.

[Matt Kettler <mkettler () evi-inc com>]

This tool already exists:

http://www.snortsam.net/index.html

this covers OpenBSD pf and FreeBSD ipf, and lots of others.

At 04:32 PM 2/27/2003 -0500, Xavier Guilbeault wrote:
> Hi all,
>
> I was wondering if it was possible to issue commands based on alert 
> detections. The goal is to activate dynamic rules to pf (OpenBSD's 
> firewall ) when an alert fires off.
> I was thinking of an ouput plugin that could be made to do this, but 
> before starting coding I wanted to know if a similar feature already exists.
>
> If you are interested in this dynamic ruleset modification with pf, here 
> is a port from  Daniel Hartmeier regarding how he does that.
> http://marc.theaimsgroup.com/?l=openbsd-pf&m=104540589312892&w=2
>
>  I know that it would need the stream4 preprocessor activated so only 
> full tcp connections are blocked so no one may spoof an IP and block it.
>
> Maybe such thing may have been done with other firewalls, if it's the case 
> please enlighten me.
>
> Thank you for your time
>
> Xavier Guilbeault
>
>
>
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