Bruce’s Shorts | 4.10 - Firewalls

You’ve got a firewall and you think that’s enough? When is the last time it was updated? In this series of Bruce’s Shorts, Bruce Devlin looks at computer security.

The word "firewall' doesn't really describe what an IT firewall does. It's more like a hazmat suit (hazardous materials suit) that forms a barrier between your computer or computer network and the outside world.

A simple firewall can monitor incoming traffic for threats. More sophisticated firewalls can learn how a network behaves and report strange behavior. This knowledge can be shared by large groups of users to mutual benefit and to update their firewalls. When did you last update your firewall?

Once a virus is inside the firewall, it isn't going to remove the virus, you need other software for that. 

VPNs may puncture the firewall. It is worthwhile learning how to configure your firewall. It won't solve all your problems, but it will help.

You might also like...

Differentiating Between Cloud And Virtualization

There’s usually a bit of confusion when people talk about going to the cloud vs. virtualizing. While most cloud providers use virtual machine configurations to optimize their offerings, that’s not the same thing.

NAB Has Been Cancelled Due to the Coronavirus

The NAB show has been cancelled. This announcement was made by NAB president, Gordon H. Smith.

Bonded Cellular At The 2020 NAB Show

Need a live shot from inside an unmarked moving rental sedan during a thunderstorm? No problem.

Blockchain Is Not A Cloud Service

As cloud and cloud words become common in the media lexicon so has the term blockchain. Let’s take a closer look at blockchain. Not all technologies work everywhere or should they! Each time one industry sector introduces a new c…

Data Recording and Transmission: Error Correction II - Part 17

Here we look at one of the first practical error-correcting codes to find wide usage. Richard Hamming worked with early computers and became frustrated when errors made them crash. The rest is history.