Demilitarized zone (DMZ)
DMZ (demilitarized zone) is a computer host or small network inserted as a "neutral zone" between a company's private network and the outside public network. It prevents outside users from getting direct access to a server that has company data. A DMZ is an optional and more secure approach to a firewall and effectively acts as a proxy server as well. A DMZ sits between the Internet and the internal network and is sometimes referred to as a “perimeter network.”
A DMZ protecting an internal network
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