Install softflowd by entering the following commands in the terminal:
sudo apt update sudo apt install softflowd
Description:
Flow-based network traffic analyser
Softflowd is a flow-based network traffic anaylser capable of Cisco Netflow data export. Softflowd semi-statefully tracks traffic flows recorded by listening on a network interface or by reading a packet capture file. These flows may be reported via NetFlow to a collecting host or summarised within softflowd itself.
Homepage: https://github.com/irino/softflowd
Version: 0.9.9-3
Section: universe/net