Firewall

Below is a short video illustrating what a firewall is.



A firewall is a device or set of devices designed to permit or deny network transmissions based upon a set of rules and is frequently used to protect networks from unauthorized access while permitting legitimate communications to pass.

Many personal computer operating systems include software-based firewalls to protect against threats from the public Internet. Many routers that pass data between networks contain firewall components and, conversely, many firewalls can perform basic routing functions.

Follow this link to access and configure your windowsfirewall.

Follow this link to access and configure your mac firewall.