AWS, JavaScript, React - Deploy Web Apps on the Cloud - Hosted Software Firewalls UFW

The video tutorial covers the setup and configuration of hosted and network firewalls, focusing on UFW (Uncomplicated Firewall) for Ubuntu. It explains the differences between network and hosted firewalls, the importance of configuring UFW, and provides a step-by-step guide to connecting to a server using Putty. The tutorial also demonstrates how to set up basic and advanced UFW rules, test and modify these rules, and manage inbound and outbound connections. Finally, it covers disabling and resetting UFW to its default settings, ensuring a secure server environment.

What is the primary role of a network firewall in relation to a hosted firewall?

• To manage software applications

• To provide a secondary layer of security

• To have priority over the hosted firewall

• To replace the hosted firewall

What does UFW stand for?

• User-Friendly Firewall

• Universal Firewall

• Uncomplicated Firewall

• Unified Firewall

Why is UFW considered more user-friendly compared to IP tables?

• It is pre-installed on all systems

• It has a graphical interface

• It offers a simplified approach

• It requires no configuration

What is the default status of UFW when first installed?

• Partially enabled

• Enabled

• Disabled

• Configured

Which command is used to allow SSH connections on a custom port using UFW?

• sudo ufw allow

• sudo ufw allow 22

• sudo ufw allow ssh

• sudo ufw enable ssh

What is the purpose of allowing HTTP and HTTPS traffic in UFW?

• To block all web traffic

• To make websites publicly accessible

• To secure the server from attacks

• To disable web services

How can you restrict SSH access to specific IP addresses using UFW?

• By changing the default SSH port

• By specifying IP addresses in the allow rule

• By using the command 'sudo ufw deny ssh'

• By disabling SSH

What command is used to delete a UFW rule by its rule number?

• sudo ufw erase

• sudo ufw delete

• sudo ufw remove

• sudo ufw clear

What happens when you reset UFW to its default configuration?

• All rules are deleted and defaults are restored

• UFW is disabled permanently

• Only SSH rules are reset

• The system reboots automatically

Which command is used to disable UFW entirely?

• sudo ufw reset

• sudo ufw stop

• sudo ufw shutdown

• sudo ufw disable