Suppose you have a nginx container running by Docker on your server and you noticed some DDoS traffics. The first thing you might think about is to block the attacker’s IP addresses. You might use iptables to block the identified IP addresses. However, this might not work as you expected because docker isn’t very friendly with iptables. Another aspect is that DDoS means the attacker can use lots of different IP addresses to attack. In fact, there are even tools that help attackers perform DDo...