After running an Nmap scan on a local area network, a penetration tester notices several older Linux servers have port 23 open. Which of the following should the systems administrator do as a security best practice?

A. Use a non-standard port for Telnet.

B. Disable and uninstall the Telnet service.

C. Ensure the kernels are up to date with the latest patches.

D. Configure the firewall to allow Telnet access only from trusted networks.








 

Suggested Answer: A

Community Answer: B



This question is in XK0-004 CompTIA Linux+ Exam
For getting CompTIA Linux+ Certificate


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