: About Me

A firewall basically acts as a real wall or fence - it stops unwanted "guests" (like your nosey neighbour (read: hackers), or a door-to-door salesman (viruses), etc ) from getting into your place (computer). If you prefer a more technical explanation, the excerpt below is taken from wikipedia: "A firewall is a hardware or software device which is configured to permit, deny, or proxy data through a computer network which has different levels of trust." There are a few way in which a firewall blocks traffic into your computer. • Ports Ports basically act like doors, they can be ope...