Internet Firewall Basics

In our first article, we discussed the basic features and purpose of firewalls. Here, we trace its origins and development.

In today's high tech world where business and home computers alike are interconnected in one huge web, firewalls offer comfort that somehow, your computer is protected from the many threats besieging it. What exactly is a firewall?

In our first article, we mentioned that while firewalls can shield a single computer or a network from a slew of threats, there are intruders that cannot simply be thwarted by firewalls. Here we discuss both kinds of threats.