Which built-in functionality of Linux can control network traffic and also perform stateful inspection of traffic going into and out of the DMZ?
Why is Social Engineering considered attractive by hackers and commonly done by experts in the field?
What kind of software could Harold to use to track her activities online, and send Harold an email of her activity once a day so he can see what she has been up to?
What would you call such a host when the system is on the public side of the demilitarized zone, unprotected by a firewall or filtering router?