Randall

A firewall is a device or software that protects a computer system from unauthorized access by the Internet or other external networks. A firewall can also protect a computer system from unauthorized access by other computer systems.

A firewall can be a stand-alone device or it can be integrated into the operating system of a computer. A firewall can be implemented in hardware, software, or a combination of both.

A firewall is designed to protect a computer system by preventing unauthorized access to the computer system by the Internet, other external networks, or by other computer systems. A firewall can also protect a computer system by preventing unauthorized access to the computer system by the Internet, other external networks, or by other computer systems.

A firewall can be configured to allow or deny specific types of traffic. A firewall can also be configured to allow or deny specific types of traffic. A firewall can also be configured to allow or deny specific types of traffic.