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same IP address.
DMZ Demilitarized Zone
In computer security, DMZ is a physical or logical
network that contains and exposes an
organization's external services to a larger distrusted
network, usually the Internet. The term is normally
referred to as a DMZ by IT professionals. I
sometimes referred to as a Perimeter Network. The
purpose of a DMZ is to add an additional layer of
security to an organization's LAN (Local Area Network);
an external attacker only has access to equipment in
the DMZ, rather than any other part of the network.
DNS Domain Name System DNS is a distributed hierarchical naming system for
computers, services, or any resource connected to the
Internet or a private network. Most importantly, it
translates domain names meaningful to humans into
the numerica
l (binary) identifiers associated with
networking equipment for the purpose of locating and
addressing these devices worldwide.
DSCP Differentiated Service or
DiffServ
DSCP
is a computer networking architecture that
specifies a simple, scalable and coarse-grained
mechanism for classifying, managing network traffic
and providing Quality of Service (QoS) guarantees on
modern IP networks. DiffServ can, for example, be
used to provide low-latency, guaranteed service (GS) to
critical network traffic such as voice or video while
providing simple best-
effort traffic guarantees to
non-critical services such as web traffic or file transfers.
DiffServ uses the 6-bit Differentiated Services Code
Point (DSCP) field in the header of IP packets for
packet classificatio
n purposes. DSCP replaces the
outdated IP precedence, a 3-bit field in the Type of
Service byte of the IP header originally used to classify
and prioritize types of traffic.
DSL Digital Subscriber Line DSL is a family of technologies that provides digital
data transmission over the wires of a local telephone
network. In telecommunications marketing, the term
Digital Subscriber Line is widely understood to mean
Asymmetric Digital Subscriber Line (ADSL), the most