DMZ
2
7.3
- noun
- /diː ɛm ˈziː/
- Specialized
:
subred desmilitarizada
- The company created a DMZ to separate its sensitive internal systems from external threats.
Examples
-
In production, we currently use a single DMZ off our corporate firewall, and all traffic between the DMZ and the LAN routes through the firewall.
Blog text (8) -
We want to put a Lync edge server in the DMZ.
Blog text (8) -
If I wanted to test without using a DMZ, can I just use your instructions with reference to only using the public IPs?
Blog text (8) -
At this point, we specify the DMZ IP addresses of our edge server.
Blog text (8) -
From the edge server, can you telnet to its own DMZ IP on the correct ports?
Blog text (8) -
Then public IPs are NAT'd to the DMZ IP addresses.
Blog text (8) -
I would like to stress again that our ISA server is configured as a single network adapter in our DMZ network.
Blog text (8) -
As far as what IP the external NIC gets, it can be a public IP or a DMZ IP that is NAT'd by your firewall.
Blog text (8) -
Now that our DNS zone is in order, we can plan for our edge server. In this example, I will be using 1 internal IP, 3 DMZ IPs, and 3 public IPs. Instead of placing the public IPs directly on the edge servers.
Blog text (8) -
In order to secure our network, we set up a DMZ to manage public-facing services safely.
Synonyms
5
4.6
A smaller network inside a larger computer network that organizes and protects devices
A small group of connected computers or devices inside a larger computer system
How Isolated
- Specialized
5
4.6
- Specialized
2
7.3
Surface Forms
Etymology
DMZ in computing borrows the name demilitarized zone and means a separate zone between the public internet and the private network. A helpful way to remember it is to think of a 'safe yard' where public servers sit so attackers can reach them without getting into your private network, and that is why a DMZ helps protect internal systems.