[CentOS] Re: IPTables Blocking Brute Forcers

Sudev Barar sbarar at gmail.com
Fri Nov 17 01:39:31 UTC 2006

On 17/11/06, Steve Snyder <swsnyder at insightbb.com> wrote:
> On Thursday 16 November 2006 12:10 pm, Brian Marshall wrote:
> [snip]
> > Does anyone have suggestions on how I can script IPTables or put some
> > other security measure in place that could detect brute-forcing and
> > reject from their IP?
> You can use IPTables to limit the rate of connections.  I allow only 2
> connections from a given IP address within each 3 minute period.
> That allows for a quick retry when I mis-type the password, but makes for
> a very sloooooooow brute force attack.  Most script kiddies aren't
> willing to put in that kind of time on a single target.  I hardly ever
> see more than 2 attempts to crack my box now.

I know this is sloppy and lazy but can you post your iptables line
that does this?
Sudev Barar

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