I have a virtual environment and Iam making a SYN flood attack to a Ubuntu Server's port 53 using Kali 2020.
I realized that a countermeasure for this attack is to limit or block the responses to the SYN packets, which are the SYN,ACK.
But how can I do this with iptables?
What else should be done to prevent that kind of attacks?
Any help would be appreciated.