What is DMZ ?

A computer host or small network inserted as a “neutral zone” between a company’s private network and the outside public network. The DMZ prevents outside users from getting direct access to a server that has company data. (The term comes from the geographic buffer zone that was set up between North
Korea and South Korea following the United Nations “police action” in the early 1950s.) A DMZ is an optional and more secure approach to a firewall and effectively acts as a proxy Server.