[CentOS] Software to monitor security logs and email ISPs?

[Jeff Coleman]

> I know there is software out there 
> that will monitor your logs, reverse trace the IP address, 
> and contact the ISP saying that at X time on X day X IP 
> address tried to brute force hack my machine. I guess it's 
> one of those things where I'm sick of seeing it come up in my 
> security log, so I'd like to start sending email to the ISPs 
> to tell them to do their job and enforce their rules for all 
> the Windoze users out there.
> But I don't want to take the time to do it manually. Any suggestions?
> 

Take a look at http://www.dshield.org/

-jeff