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Networking & Telecommunications vocabulary · Network Security

DMZ

Meaning in networking & telecommunications, with examples

abbreviationAdvanced term

In networking & telecommunications, DMZ means: Short for demilitarised zone: a separate network segment between the internet and the internal network, where public-facing servers such as web or mail servers are placed.

In Turkish: DMZ, arındırılmış bölge, tampon bölge

How it is used

Spelled out letter by letter. Servers are placed in or moved to the DMZ, so that if one is compromised, an attacker still has to get past the firewall to reach internal systems. Firewall rules usually allow traffic from the internet into the DMZ but strictly limit traffic from the DMZ inwards.

Example sentences

  1. The new web server will sit in the DMZ, not on the internal network.

  2. Only port 443 is open from the internet to the DMZ.

Common collocations

  • DMZ network
  • place a server in the DMZ
  • DMZ segment
  • DMZ firewall rules
  • firewallA hardware device or software that checks network traffic against a set of rules and allows or blocks it, protecting a network from unwanted access.
  • ACLShort for access control list: an ordered list of rules on a router, switch or firewall that permits or denies traffic based on things like source, destination, protocol and port.
  • port forwardingA NAT rule that sends traffic arriving on a public IP address and port to a specific device and port inside a private network, so that an internal service can be reached from outside.
  • NATShort for network address translation: a method in which a router or firewall rewrites the addresses in packets, typically so that many devices with private addresses can share one public IP address.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Network Security

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