User`s manual
416
DWS-1008 User’s Manual
D-Link Systems, Inc.
Appendix D - Glossary
DHCP
Dynamic Host Conguration Protocol. A protocol that dynamically assigns IP addresses
to stations, from a centralized server. DHCP is the successor to the Bootstrap Protocol
(BOOTP).
dictionary attack
An attempt to gain illegal access to a computer or network by logging in repeatedly with
passwords that are based on a list of terms in a dictionary.
Dife-Hellman
A key exchange algorithm that was the rst public-key algorithm ever published. Dife-
Hellman can be used anonymously (without authentication).
Diffserv
Differentiated services. An architecture for providing different types or levels of service for
network trafc. Diffserv aggregates ows in the network so that routers and switches need
to distinguish only a relatively small number of aggregated ows, even if those ows contain
thousands or millions of individual ows.
digital certicate
A document containing the name of a user (client) or server, a digital signature, a public key,
and other elements used in authentication and encryption. See also X.509.
digital signature
The result of encrypting a hash of a message or document with a private key. A digital signature
is used to verify the authenticity of the sender and the integrity (unaltered condition) of the
message or document. See also hash.
Digital Signature Algorithm
See DSA.
direct-sequence spread-spectrum
See DSSS.
domain
(1) On the Internet, a set of network addresses that are organized in levels. (2) In Microsoft
Windows NT and Windows 2000, a set of network resources (applications, printers, and so
forth) for a group of users (clients). Clients log into the domain to access the resources, which
can be located on a number of different servers in the network.
DSA
Digital Signature Algorithm. The public-key algorithm used to sign X.509 certicates.