RHCSA RHCSA SSH and Remote Access Configuration

Question 1

Which file contains the system-wide SSH server configuration on RHEL?

Accepted Answer

/etc/ssh/sshd_config

Answer

The SSH daemon reads its server-side configuration from `/etc/ssh/sshd_config` on RHEL and most Linux distributions.

Question 2

What command generates an SSH key pair for key-based authentication?

Accepted Answer

ssh-keygen

Answer

`ssh-keygen` generates a new public/private SSH key pair, defaulting to `~/.ssh/id_rsa` and `~/.ssh/id_rsa.pub`.

Question 3

Which command copies your public SSH key to a remote host for passwordless login?

Accepted Answer

ssh-copy-id user@host

Answer

`ssh-copy-id` appends your public key to the remote user's `~/.ssh/authorized_keys` file automatically.

Question 4

Where is the authorized public keys file stored for SSH key-based login on RHEL?

Accepted Answer

~/.ssh/authorized_keys

Answer

The SSH daemon checks `~/.ssh/authorized_keys` in the target user's home directory for permitted public keys.

Question 5

Which `sshd_config` directive disables root login over SSH?

Accepted Answer

PermitRootLogin no

Answer

Setting `PermitRootLogin no` in `/etc/ssh/sshd_config` prevents the root account from authenticating via SSH.

RHCSA Exam Practice Test