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Linux Distributions and Kernel Configurations

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Questions and Answers

What is the primary purpose of the 'ufw' command in Linux?

To configure automatic updates
To manage firewall settings (correct)
To restrict physical access to the server
To monitor system logs

What is the recommended practice for securing SSH access?

Enabling root login via SSH
Disabling SSH altogether
Using passwords for authentication
Changing the default SSH port to a non-standard port (correct)

What is the purpose of Fail2Ban in Linux?

To monitor system logs
To scan logs and ban IPs that show malicious signs (correct)
To restrict physical access to the server
To secure shared memory

Why is it recommended to restrict root login via SSH?

To reduce the attack surface (D) Signup and view all the answers

What is the purpose of securing shared memory in Linux?

To add an extra layer of security to prevent malicious activities (D) Signup and view all the answers

Why is it important to limit physical access to the server?

To prevent data loss or system compromise (B) Signup and view all the answers

What is the purpose of SELinux or AppArmor in Linux?

To provide mandatory access control (D) Signup and view all the answers

Why is it recommended to regularly backup data in Linux?

To prevent data loss or system compromise (B) Signup and view all the answers

What is the purpose of a Web Application Firewall (WAF) in Linux?

To protect against web-based attacks (D) Signup and view all the answers

Why is it recommended to disable unnecessary services in Linux?

To reduce the attack surface (B) Signup and view all the answers

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