[CentOS] which firewall to automatically block bandwidth abusers?

Thu Aug 18 02:13:34 UTC 2011
Craig White <craigwhite at azapple.com>

On Wed, 2011-08-17 at 21:50 +0200, Rudi Ahlers wrote:
> Hi,
> 
> I'm looking for a firewall (preferably on Linux / UNIX) that could
> automatically block bandwidth abusers as soon as a connection goes
> over a certain speed, or limit - i.e. either more than say 3Mb/s or
> 10GB in a giving period (like weekly / monthly).
> 
> But, I need it to block the IP to, or where the traffic comes from, or
> goes to. i.e. a user logs into a web server and upload a LOT of data,
> then the firewall should block him, but not other people.
> 
> Or, someone uploads a small bit of data but downloads a lot of data
> and then get's blocked.
> But I need to set thresholds
> And I should be able to exclude certain IP's / domains from the limits.
> 
> Does this make sense?
> 
> Can this be done with iptables? If so, how?
> 
> If not, what else could I use for this?
> 
> 
> A normal DDOS prevention firewall doesn't really work since it only
> blocks traffic coming in. But I need to limit traffic going out as
> well.
> 
> The servers behind the firewall will serve mail, http, ftp, sql and SSH
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http://tinyurl.com/3n5yn8u

Craig



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