DMZ and outerfirewall of a enterprise infrastructure
posted 2 years ago
I assume that by "network based attacks" you mean attacks originating from inside of the firewall. A DMZ also helps against those if they are targeting the apps running in the DMZ. Of course, from inside the firewall more kinds of attacks are possible, and against a wider range of targets, so it's fair to say that a DMZ's primary purpose is indeed to guard against attacks from the outside.