SSL handshake attack mitigation

[Sergey A. Osokin]

Hi,

On Wed, Nov 06, 2019 at 02:41:15PM -0500, mogwai wrote:
> Greetings!
> 
> I run a bunch of sites on nginx-plus-r19 (OpenSSL 1.0.2k-fips) and was
> recently hit by a nasty DDoS SSL handshake attack.

there are several techics are avaialble to mitigate DDoS attacks with NGINX and 
NGINX Plus, please see the following link for details:
https://www.nginx.com/blog/mitigating-ddos-attacks-with-nginx-and-nginx-plus/

Since you have NGINX Plus version I'd recommend to contact the NGINX Plus
Support team through the Customer Portal, https://cs.nginx.com/ or via email
plus-support at nginx.com.

--
Sergey Osokin