Tools
Defend Your Ports with Port Scan Attack Detector (PSAD)
The Port Scan Attack Detector (PSAD) is a lightweight system daemon that is designed to work with Linux iptables/firewall code to discover suspicious traffic such as port scans, backdoors, botnet command and control communications, and more. It includes a set of vastly configurable danger thresholds, long-winded alert messages that comprise Read more…