dual-homed host
A dual-homed host is a term used to reference a type of firewall that uses two (or more) network interfaces. One connection is an internal network and the second connection is to the Internet. A dual-homed host works as a simple firewall provided there is no direct IP traffic between the Internet and the internal network.
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- dual layer
Dual layer refers to a DVD recording technology that provides users with 8.5-GB of recording space (as opposed to 4.7GB of space) on a standard DVD+R discs). The additional recording space is the direct result of dual layer technology. As the name suggests, dual layer technology provides two individual recordable layers on a single sided […]
- dual-mode device
In mobile computing, a dual-mode device is one that offers voice and data connectivity to both Wi-Fi and cellular communications within in a single device. Dual-mode devices enable mobile workers to carry fewer devices using converged voice and data applications.
- dual monitor
A computer system with more than one display connected. Dual monitor systems consist of adding additional video adapters (also called video cards) to it, or by using a single video card that has multiple ports for monitors (called a dual head card). The second display screen can be any display, such as a television, projector, […]
- dual-processor
Dual-processor (DP) systems are those which contains two separate physical computer processors in the same chassis. In dual-processor systems the two processors can either be located on the same motherboard or on separate boards.
- dual-ring topology
A network topology in which two concentric rings connect each node on a network instead of one network ring that is used in a ring topology. Typically, the secondary ring in a dual-ring topology is redundant. It is used as a backup in case the primary ring fails. In these configurations, data moves in opposite […]