portsentry: portsentry (Port scan detection and active defense) portsentry: portsentry: PortSentry is a program designed to detect and respond to port scans portsentry: against a target host in real-time and has a number of options to portsentry: detect port scans. portsentry: portsentry: Please read the documentation in /usr/doc/portsentry-1.2 portsentry: before using. portsentry: portsentry: portsentry: