DMZ (Demilitarized Zone), DMZ Servers, What is Bastion Host
DMZ is an abbreviation for Demilitarized Zone. DMZ (Demilitarized Zone) refers to a part of the network that is neither part of the internal network nor directly part of the Internet. Normally, DMZ (Demilitarized Zone) is the area between your Internet access router and your bastion host (A bastion host is computer on a network which is configured to withstand attacks).
DMZ (Demilitarized Zone) is also known as Perimeter Network. DMZ (Demilitarized Zone) add an additional layer of security to an organization's internal network and an external attacker has only has access to network devices and servers in the DMZ (Demilitarized Zone). By creating a DMZ (Demilitarized Zone) an outside user need to make at least one hop in the DMZ (Demilitarized Zone) before he can access sensitive information inside the trusted network.
DMZ (Demilitarized Zone) normally hold Web servers, FTP servers, Name servers (DNS), E-mail Servers, Honeypots.