I want to make a DDoS SYN Flood Detection, so i need to count the number of SYN, ACK, or SYN-ACK packet per second.
Answer
I believe
netstat -s
will be your friend.
If you are looking for a switch level service, you can use sflow/netflow to collect data and send them to the collector.
Attribution
Source : Link , Question Author : Gilang Ramadhan , Answer Author : Yarik Dot