XK0-005 Question #1482: Real Exam Question with Answer & Explanation

The correct answer is C: ~/.ssh/authorized_keys. For key-based SSH authentication, the public key of the client must be placed in the ~/.ssh/authorized_keys file within the user's home directory on the server.

Security

Question

A systems administrator is tasked with setting up key-based SSH authentication. In which of the following locations should the administrator place the public keys for the server?

Options

A~/.sshd/authkeys
B~/.ssh/keys
C~/.ssh/authorized_keys
D~/.ssh/keyauth

Explanation

For key-based SSH authentication, the public key of the client must be placed in the ~/.ssh/authorized_keys file within the user's home directory on the server.

Common mistakes.

A. ~/.sshd/authkeys is not a standard or recognized location for storing SSH public keys for authentication.
B. ~/.ssh/keys is not the standard filename for SSH public keys used for authentication; authorized_keys is the correct name.
D. ~/.ssh/keyauth is not a standard or recognized filename for SSH public keys used for authentication.

Concept tested. SSH key-based authentication, authorized_keys file

Reference. https://www.ssh.com/academy/ssh/authorized-keys

Topics

#SSH#Public Key Authentication#Linux File Paths#Security Configuration

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