Which of the following Linux tools can be used for not only detecting port scans but taking action to prevent them?
A) Portsentry
B) Port Knocking
C) Port-Auth
D) PortSentinel

Question

Quizplus · Accepted Answer

Since being scanned is often a precursor to other forms of attack. Portsentry works with the TCP Wrappers service to block the incoming IP address by adding it to the /etc/hosts.deny file.

Which of the Following Linux Tools Can Be Used for Not