What is a firewall? - Webwise - BBC

What do firewalls do, and why is it worth having one? Get an introduction from BBC WebWise, the BBC's beginner's guide to using the internet and computers.

For more information about firewalls and internet security in general visit http://www.bbc.co.uk/webwise/guides/about-firewalls where you can find more videos, articles, a weekly column from internet experts and three interactive courses to help you get the most out of the internet.

Category:

Entertainment

Tags:

• BBC
• WebWise
• computers
• internet
• firewalls
• security
• privacy

[Richwarf]

LOL, i never did think about comparing a firewall to a castle.

[FalconsFlame]

Haha very good

[botaflo]

Learning made easy . . .

[ganeshkamath89]

very well put video... (^_^) Ganesh Happy

[wehatemacs]

that PC was actually a UPS and that video was really badly made.

[DaddyBig73]

In the tower it look like weed on the walls.

[HamsteronA]

What happens if the bad guys have a portable bridge?

[mushypeaselooe]

love the concept, fab!

[JMietser]

Firewalls are shit tbh....

Just get in the way!

[sean2mush]

is that serafinowicz