DDOS Problem

how to check if you are under DDos please explain and how to locate the problem im using wordpress site

wordops use fail2ban.
use command: fail2ban-client status
logs /var/log/fail2ban.log

JuanMaia what is the best settings of Fail2ban this 2020

Personally, I use Cloudflare and they handle 100% of that for me. Never have to worry about it. Ever.

wordops already does that for you