100% cpu usage, DDOS attack.

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

Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Site Moderator
Site Moderator badge
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
Site Moderator badge
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!



Try DigitalOcean for free

Click below to sign up and get $200 of credit to try our products over 60 days!

Sign up