Brianna

Firewall is a networking and security device that helps protect computers and networks from unauthorized access. It works by controlling the flow of data between devices on a network.

A firewall can be either hardware or software. A hardware firewall is a physical device that sits between the computer and the Internet.

A software firewall is a program that runs on the computer.

There are many types of firewalls, but the most common are network firewalls and host-based firewalls. A network firewall protects a network from unauthorized access by the network.

A host-based firewall protects a computer from unauthorized access by other computers on the network.

A network firewall is a type of firewall that protects a network from unauthorized access by the network. It sits between the computer and the Internet.

It is usually a physical device, but can also be a software program.

A host-based firewall is a type of firewall that protects a computer from unauthorized access by other computers on the network. It is usually a software program that runs on the computer.

It is usually less expensive and more easily installed than a network firewall.