What you can try doing is putting some services on a non standered port (like SSH on port 4583) This will stop most (not all) attacks coming in at port 22.

James

On Fri, May 15, 2009 at 8:21 PM, James B. Byrne <byrnejb@harte-lyne.ca> wrote:
On: Thu, 14 May 2009 13:00:09 -0700, Scott Silva
Thank you, got it.

In the meantime I revised my existing iptables rules to throttle
connections to ssh, pop3, imap and ftp (which service is not running
in any case).

Thanks for all the help from everybody.

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