Which of the following command lines should Kevin use to change the #PermitRootLogin yes line to disable password-based remote logins?

Kevin Ryan has been working as a cloud security engineer over the past 2 years in a multinational company, which uses AWS-based cloud services. He launched an EC2 instance with Amazon Linux AMI. By disabling password-based remote logins, Kevin wants to eliminate all possible loopholes through which an attacker can exploit a user account remotely. To disable password-based remote logins, using the text editor, Kevin opened the /etc/ssh/sshd_config file and found the #PermitRootLogin yes line.

Which of the following command lines should Kevin use to change the #PermitRootLogin yes line to disable password-based remote logins?
A . PermitRootLogin without-password
B . PermitRootLogin without./password/disable
C . PermitRootLogin without./password
D . PermitRootLogin without-password/disable

View Answer

Answer: A

Explanation:

To disable password-based remote logins for the root account on an EC2 instance running Amazon Linux AMI, Kevin should modify the SSH configuration as follows: