Question
100% cpu usage, DDOS attack.
- Posted on October 2, 2022
- DigitalOcean Droplets
Asked by LittleElectricBlueAngler
I found 100% cpu usage, most likely from a DDOS attack, how do I fix this? https://www.img.in.th/images/c86d0492c91e0967f0d8da048d76df07.png
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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:
https://www.digitalocean.com/community/tutorials/how-to-protect-ssh-with-fail2ban-on-ubuntu-20-04
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:
Let me know how it goes!
Best,
Bobby
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