AWS, JavaScript, React - Deploy Web Apps on the Cloud - Disabling Root User Access and Password Authentication

This video tutorial demonstrates how to enhance server security by disabling root user and plain password authentication, and enabling SSH key authentication. It guides viewers through editing the SSHD_config file, testing the changes using Putty, and verifying that only SSH key authentication is allowed. The tutorial emphasizes the importance of these security measures in preventing unauthorized access to the server.

What is the primary reason for disabling the root user on a server?

• To prevent unauthorized access

• To improve server speed

• To save disk space

• To reduce server costs

Which file needs to be edited to disable root login and password authentication?

• server_config

• network_config

• SSHD_config

• user_config

What command is used to restart the SSH server after making configuration changes?

• sudo restart sshd

• sudo reload ssh

• sudo systemctl restart ssh

• sudo reboot server

Why is it important to keep an existing session active when testing SSH changes?

• To prevent being locked out due to configuration errors

• To ensure faster login next time

• To monitor server performance

• To save server logs

What happens when you try to log in as root after disabling root access?

• The login is successful

• The server restarts

• The connection is terminated

• The server crashes

What authentication method is allowed after disabling password authentication?

• Email verification

• Biometric authentication

• SSH key pair authentication

• Two-factor authentication

What indicates that the server configuration is working correctly after the final test?

• The server sends a confirmation email

• The server shuts down

• Successful login using SSH key pair

• The server displays an error message