100% cpu usage, DDOS attack.

I found 100% cpu usage, most likely from a DDOS attack, how do I fix this?

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Site Moderator
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October 3, 2022

Hi @littleelectricblueangler,

As mentioned using a CDN like CloudFlare is the best option there is.

If you don’t want to use one, however, you can try a more restrictive firewall like Fail2Ban. Check the following tutorial on how to configure and use it:

Bobby Iliev
Site Moderator
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October 2, 2022

Hi there,

What you could do is to use a CDN provider like Cloudflare, which also includes free DDoS protection that you can enable in such situations.

I do have a script that you could use to automatically enable the Cloudflare DDoS protection, whenever the server CPU usage spiles up. You can follow the steps on how to do that here:

Bash Script to Automatically Enable Cloudflare DDoS Protection

Let me know how it goes!



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