defend dos attack [closed]

Closed. This question is 开发者_如何学Pythonoff-topic. It is not currently accepting answers.

---

Want to improve this question? Update the question so it's on-topic for Stack Overflow.

Closed 11 years ago.

Improve this question

my website is crippled due to simple request from many ranges of ips, tens of thousands or more request per second.

Is there a way to defend this kind of attack?

Is there a way to trace back to the attacker?

---

Yes.

apt-get install mod-dosevasive

But this question belongs on serverfault.