Kendrick

A firewall is a computer security measure that separates a computer network into two or more networks: a private network and a public network. The purpose of a firewall is to protect the private network from unauthorized access by the public network.

Firewalls are also used to control which traffic can pass from the private network to the public network.

A firewall consists of a hardware or software component that resides on the computer and a software component that resides on the network. The hardware and software components work together to determine whether or not to allow a request from the private network to pass to the public network.

A firewall must be configured in accordance with the network configuration and security policy of the organization. The firewall must also be configured to allow necessary traffic to pass.

If the firewall is not configured properly, it can block traffic or prevent legitimate users from accessing resources on the public network.

A firewall can be a standalone device or it can be part of a security suite. A standalone firewall is a separate device that is installed on a computer.

A security suite is a collection of tools that is installed on a computer. A security suite includes a firewall.

A firewall is a important computer security measure. A firewall can protect a computer network from unauthorized access by the public network.

A firewall can also control which traffic can pass from the private network to the public network.