- Delete
- The process of removing a file from a directory listing. In most cases
the data from files that have been deleted still exists until the freed
space is reused, but recovery may be difficult if not impossible.
see rm.
- Daemon
- Under Unix, a daemon is a process that runs in the background,
doing automated processing.
The FreeBSD Unix OS has
it's own rendition.
- DCC
- Acronym for Direct Client-to-Client, a feature of some
IRC client software,
allowing users to communicate messages and files directly, bypassing a server.
(zajbt)
- DCE
- Data Communications Equipment refers to serially connected
communications devices, particularly
modems.
See also
DTE.
- DHCP
- Dynamic Host Configuration Protocol, a system by which IP addresses and
other low-level network configuration information can be dynamically assigned
each time the system loads, similar to the Internet standard
bootp.
DHCP is defined in RFC 983.
- Dialup
- To initiate a connection over a circuit-switched line, either an
POTS with a
modem or using
ISDN.
See also
PPP,and
SLIP
- DIMM
Dual Inline Memory Module.
A form of memory expansion that consists of a 168-pin plug-in device.
See also
SIMM.
- Directory
- The Unix equivalent of Macintosh or MS-Windows 'folder',
all files are stored in directories.
A directory can be created with the
mkdir
command and empty directories are removed with
rmdir.
- DNS
- Acronym for Domain Name Service,
the mechanism by which human-readable hierarchial names are translated to
IP addresses, and vice-versa.
- Domain
- An internet 'domain' is a subsection of the internet.
The primary domains of the internet are .COM, .INT, .NET, .MIL, and .ORG,
which refer to Commercial, International, Network, Military, and Organization.
These domains are administered by the
Internic. There are also two-letter domains
associated with specific countries.
Each domain has a primary and secondary
Domain Name Server associated with it.
- Domain Name Server
- Each internet
domain has two domain name servers, or DNS.
The primary DNS for a domain is usually located on one of the machine in that
network, you can often determine the server from the output of the
nslookup command.
- DOS
- Disk Operating System, the basic computer instruction set used to
provide an interface to storage and other devices.
Also,
Denial Of Service, a form of attack in which the goal is to make a
computing resource unavailable to legitimate users.
See also
OS.
- DS0
- A single 64-kbps channel, usually one of the 24 channels in
a T1 circuit.
- DSL
- Digital Subscriber Line.
A method of providing connectivity at speeds up to 9Mbps using the existing
POTS copper wiring.
- DSLAM
- Digital Subscriber Loop Access Multiplexer.
A network device designed to multiplex many individual
DSL circuits into a single high speed circuit, generally
ATM to an
ISP.
- DSU
- Digital Service Unit, a device used to connect a
V.35 serial interface to a digital circuit.
Generally any
CPE
that terminates a digital circuit is referred to as a
"CSU/DSU".
- DTE
- Date Terminal Equipment, communications hardware such as computers,
terminals, and similar equipment, as opposed to
DCE such as modems.
- DVD
- Digital Versatile Disk, a high-density mass storage medium similar to
CD-ROM, but capable of storing much larger amounts
of information due to improvements in recording density and use of multiple
layers per side.
- DVORAK
- An alternative keyboard layout designed for speed.
See QWERTY
Dweeb
Deragotory name for a person with limited social and
technical skills.
Generally a geek wannabe.