Dos/DDos Guide

What is a Dos and DDos attack?

DDoS is an abbreviation for distributed denial of service. A denial-of-service (DoS) attack overloads a server, making a website or resource unavailable. A distributed denial-of-service (DDoS) assault is a type of DoS attack that employs numerous computers or machines to flood a specific resource.

Impact

Since Cardano node runs on linux servers which can be vulnerable to Dos/DDos attacks. This can result in the server being knocked offline by the attacker for a prolonged period of time which can result in loss of rewards and downtime can be bad for the reputation of the pool.

Prevention and Incident Response

Have a look at all features in our tool to uncover a possible sign or a vulnerability that can result in a DDos attack. To prevent such kinds of attacks you can set the following things up to be on a safer side. 1. Setup a private relay alongside your registered relay. 2. Make sure your server can handle a bandwidth of 100-500 GBPS. (According to Azure, average attack size in 2021 increased by 30 percent, from 250 Gbps to 325 Gbps.) 3. Use a service like traffic scrubbing or a dedicated firewall for your servers. (Optional)