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...

Flexible Contribution Over IP - Part 1

IP connectivity delivers flexibility and scalability but making the theory work often requires integrated solutions that are adaptable, open, and promote interconnectivity.

Building An IP Studio: Connecting Cameras - Part 4 - Software Defined Networks

In the previous article in this series, we looked at layer-2 switching and layer-3 routing. In this article, we look at Software Defined Networks and why they are so appealing to broadcasters.

Migrating To The Cloud Takes Careful Planning For Work-From-Home Workflows

It was late in 2018 when a major public broadcaster in the UK came to London-based 7FiveFive, a technology solutions provider, with a growth challenge. Their postproduction department had about 75 edit positions throughout the building working off a shared storage SAN…

Machine Learning For Broadcasters: Part 3 - Neural Networks And The Human Brain

Machine learning is often compared to the human brain. But what do they really have in common?

IP Security For Broadcasters: Part 12 - Zero Trust

As users working from home are no longer limited to their working environment by the concept of a physical location, and infrastructures are moving more and more to the cloud-hybrid approach, the outdated concept of perimeter security is moving aside…