What does dmz host mean?

The dmz host means isolation zone. The dmz host is a network architecture layout plan. The commonly used installation plan is to create an external network facing the untrusted external network and the trusted internal network. A physical or logical subnet that can be used to configure server hosts for external networks.

#The operating environment of this article: Windows 10 system, dell g3 computer.

dmz host, English is demilitarized zone, Chinese name is "isolation zone", also called "demilitarized zone", it is a network architecture layout plan. The commonly used installation plan is in an untrusted external network Outside the trusted internal network, create a physical or logical subnet facing the external network. This subnet can be used to set up server hosts facing the external network.

The function is to connect WEB, e-mail, ftp and other servers that allow external access to the port in this area. The characteristic of this area is that both internal and external networks can be accessed at the same time, but devices in the DMZ area cannot actively access the internal and external networks, thereby achieving isolation of internal and external networks and effectively protecting the internal network from external network attacks.

The DMZ zone provides a buffer between the Internet and the internal network. The DMZ is isolated by a security gateway (such as a firewall) that filters traffic between the DMZ and the LAN. The default DMZ host is protected by another security gateway that filters traffic from the external network.

How to turn on the DMZ host?

So how to enable the DMZ host service on a home router? It's very simple. First, we need to log in to the router management background, click Application Management, and enter the DMZ host function page.

Select Enable, select the IP address of the device that needs to activate the DMZ host function from the connected devices, click Save, and the settings are ready. However, if you want to access the host from the external network, you need to access it through the router's wan port address. The host page needs to set up services such as ftp or web, and turn off the local firewall.

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