Firewall Setup & Tweak - Very Important!

Firewall - Very Important! What is Firewall? No I really need it??? A firewall is a part of a computer system or network that is designed to Block Unauthorized Access while permitting authorized communications. It is a device or software that is configured to PERMIT or DENY network transmissions based upon a set of rules and other criteria. This is very important for computers of any scale as its an additional protection from unwanted program access like virus and other programs that intend to do harm to your PC, also helps prevent unauthorized access to your computer by other people fro many where in the globe.