Vulnerability of the network.

How do Networks prevent INTRUSION?

ROUTER

Firewall – software/hardware that selectively limits communication on ports.

Port - A data connection.
Usually data’s in a file but sometimes file comes from some place and comes to your hard disk and then you use it but with a port the idea is that it comes straight in and gets used right away and doesn’t get written to some place. Or straight to the video game, right? Martin is not here.

Router – data comes through a firewall.

Vulnerability of the network.
Do many computers have a firewall or not? Windows doesn’t and Mac does we doesn't need it.

When the person instaled Vista, the registry was turned off and then the computer said that registry should be turned on but then when he went to turn it on the computer said ‘you sure you want to turn it on?’