When was the last time you checked the most important part of your Internet Defense? All that stands between you and the Evils of the Internet is a single device called the Internet Firewall (or sometimes called the Router). The firewall is a gatekeeper and controls what can get ‘out’ to the Internet from your Office network, and more importantly what can get ‘in’ to your network from the evil public side. Have no freaking idea what it’s currently configured to allow in (and should you really)? Then this article is for you, keep reading.