A Linux administrator attempts to log in to a server over SSH as root, and receives the following error message: Permission denied, please try again. The administrator is able to log in to the…

Question

Exhibit

Options

• ALog out other user sessions because only one is allowed at a time.
• BEnable PAM and configure the SSH module.
• CModify the SSH port to use 2222.
• DUse a key to log in as root over SSH.

• A
  2% (1)
• B
  11% (6)
• C
  4% (2)
• D
  83% (45)

Explanation

Based on the SSH configuration shown in the image, let's analyze the settings: PermitRootLogin prohibit-password: This setting disables password authentication for the root user, meaning root cannot log in using a password but can still log in using key-based PasswordAuthentication yes: Password authentication is enabled for non-root users. Use PAM no: PAM (Pluggable Authentication Modules) is disabled. MaxSessions 1: Only one session is allowed at a time. MaxAuthTries 3: Limits the number of authentication attempts. Since the PermitRootLogin prohibit-password option is set, root cannot log in using a password but can log in using SSH key-based authentication.

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