IBM AIX V7 Administrator — Question 1

Which action will temporarily disable remote login access using telnet and ssh for all non-root accounts?

Answer options

• A. Stop the sshd subsystem
• B. Set the PermitLogins parameter in /etc/ssh/sshd_config and recycle the sshd daemon
• C. Touch the /etc/sshd/nologin file and recycle the sshd daemon
• D. Update /etc/security/passwd and recycle the inetd subsystem
• E. Create an /etc/nologin file

Correct answer: E

Explanation

Creating an /etc/nologin file prevents non-root users from logging in remotely, as this file is checked by the login process. The other options either do not specifically disable access for all non-root accounts or involve steps that may not be effective in temporarily blocking remote login access.