724 lines
25 KiB
Plaintext
724 lines
25 KiB
Plaintext
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><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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*********************************************************
|
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* *
|
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* Database of Network Terms *
|
||
* Part 10 *
|
||
* *
|
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* *
|
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* Another Modernz Presentation *
|
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* *
|
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* by *
|
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* Digital-demon *
|
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* *
|
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* (C)opyright March 9th, 1992 *
|
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* *
|
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*********************************************************
|
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<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
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*******************************************************************************
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The Modernz can be contacted at:
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MATRIX BBS
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WOK-NOW!
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World of Kaos NOW!
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World of Knowledge NOW!
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St. Dismis Institute
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- Sysops: Wintermute
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Digital-demon
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(908) 905-6691
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(908) WOK-NOW!
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(908) 458-xxxx
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1200/2400/4800/9600
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Home of Modernz Text Philez
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The Church of Rodney
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Home of TANJ Text Philez
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UASI ALPHA Division
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NorthWestern PA UASI site!
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SANctuary World Headquarters!
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New Jersey UASI site!
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(908) 495-3926 300/1200/2400
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24 hours! SysOp: Red
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<*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*>
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BlitzKreig BBS
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Home of TAP
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(502)499-8933
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<*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*>
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|
||
label
|
||
=====
|
||
|
||
One or more characters used to identify a program statement or a data
|
||
item.
|
||
|
||
|
||
|
||
LAN
|
||
===
|
||
|
||
Local Area Network. A geographically localized network consisting of
|
||
both hardware and software. LANs link personal computers, workstations,
|
||
printers, file servers, and other peripherals. Devices on a LAN
|
||
typically transmit data between offices in the same building or between
|
||
buildings located near each other. See token ring, ethernet, AppleTalk,
|
||
LocalTalk, Virtual Networking Systems (VINES), and Xerox Network
|
||
Systems (XNS).
|
||
|
||
|
||
|
||
|
||
LAP
|
||
===
|
||
|
||
Link Access Procedure.
|
||
|
||
|
||
|
||
LAPB
|
||
====
|
||
|
||
Link Access Procedure-Balanced.
|
||
|
||
|
||
|
||
LAS
|
||
===
|
||
|
||
Last Acknowledgment Sent.
|
||
|
||
|
||
|
||
|
||
Last In-First Out (LIFO)
|
||
========================
|
||
|
||
A method of accessing a data stack in which the last item written is
|
||
the first item read.
|
||
|
||
|
||
|
||
|
||
LATA
|
||
====
|
||
|
||
Local Access and Transport Area.
|
||
|
||
|
||
|
||
LCGN
|
||
====
|
||
|
||
Logical Channel Group Number.
|
||
|
||
|
||
|
||
LCN
|
||
===
|
||
|
||
Logical Channel Number.
|
||
|
||
|
||
|
||
|
||
LCP
|
||
===
|
||
|
||
Local Control Program. Provides access control and security, call
|
||
processing, virtual circuit building, and network status information.
|
||
|
||
|
||
|
||
LDA
|
||
===
|
||
|
||
Load Accumulator. A machine code instruction. Similar to mnemonic.
|
||
|
||
|
||
|
||
|
||
LDEM
|
||
====
|
||
|
||
Leave Deferred-Echo Mode. An ISIS Dispatcher message indicating a
|
||
change of state from Deferred-Echo Mode (destination) to local echo
|
||
mode (origination). Contrast with Enter Deferred-Echo Mode.
|
||
|
||
|
||
|
||
LDM
|
||
===
|
||
|
||
Limited Distance Modem. A repeater or wave amplifier.
|
||
|
||
|
||
|
||
|
||
leased line
|
||
===========
|
||
|
||
A type of communications link with a permanent path for exclusive use
|
||
by the lessee.
|
||
|
||
|
||
|
||
|
||
least-cost path
|
||
===============
|
||
|
||
The route between two network communications devices that uses network
|
||
resources most efficiently.
|
||
|
||
|
||
|
||
|
||
Leave Deferred-Echo Mode (LDEM)
|
||
===============================
|
||
|
||
An ISIS Dispatcher message indicating a change of state from
|
||
Deferred-Echo Mode (destination) to local echo mode (origination).
|
||
Contrast with Enter Deferred-Echo Mode.
|
||
|
||
|
||
|
||
|
||
LEM
|
||
===
|
||
|
||
Local Engine Monitor. A PC-based application used in a Small-scale
|
||
Distributed Network (SDN) to monitor and control the network, load
|
||
and dump Engines, and validate users.
|
||
|
||
|
||
|
||
Leprechaun logic (LEP)
|
||
======================
|
||
|
||
A Node Code routine that handles Supervisory communication.
|
||
|
||
|
||
|
||
|
||
LF
|
||
==
|
||
|
||
Line feed.
|
||
|
||
|
||
|
||
|
||
LHN
|
||
===
|
||
|
||
Long-Haul Network. A large geographical area communications network.
|
||
|
||
|
||
|
||
|
||
license
|
||
=======
|
||
|
||
The approval to execute restricted commands.
|
||
|
||
|
||
|
||
LIFO
|
||
====
|
||
|
||
Last-In, First-Out. A method of accessing a data stack in which the
|
||
last item written is the first item read.
|
||
|
||
|
||
|
||
|
||
Limited Distance Modem (LDM)
|
||
============================
|
||
|
||
A repeater or wave amplifier.
|
||
|
||
|
||
|
||
line
|
||
====
|
||
|
||
A physical connection. A communications cable or waveguide that
|
||
connects data processing equipment.
|
||
|
||
|
||
|
||
|
||
line conditioning
|
||
=================
|
||
|
||
The improved quality and speed of data transmission on private,
|
||
leased communications lines.
|
||
|
||
|
||
|
||
line control
|
||
============
|
||
|
||
The collection of operating procedures and control signals that control
|
||
a data transmission system.
|
||
|
||
|
||
|
||
line editor
|
||
===========
|
||
|
||
A program capable of revising another program or data (in a file) one
|
||
line at a time. See editor.
|
||
|
||
|
||
|
||
line loading
|
||
============
|
||
|
||
The total amount of transmission traffic carried by a line; usually
|
||
expressed as a percentage of the total theoretical capacity of that
|
||
line.
|
||
|
||
|
||
|
||
line outage
|
||
===========
|
||
|
||
A failure of a communications circuit due to faulty telephone branch
|
||
office exchange equipment, storms, loss of carrier signals, or other
|
||
events that could cause an open or short circuit.
|
||
|
||
|
||
|
||
|
||
line protocol
|
||
=============
|
||
|
||
A set of rules governing data transmission over network lines. Consists
|
||
of both handshaking and line control functions between transmit and
|
||
receive locations.
|
||
|
||
|
||
|
||
|
||
link
|
||
====
|
||
|
||
A logical connection between two nodes.
|
||
|
||
|
||
|
||
linked list
|
||
===========
|
||
|
||
A data structure in which each data record has a pointer to the next
|
||
logical data record in the list.
|
||
|
||
|
||
|
||
load
|
||
====
|
||
|
||
The transfer of data into main memory from an auxiliary storage device,
|
||
such as a disk. Also, the amount of traffic or activity at a given time
|
||
on a node, line, network, or Engine.
|
||
|
||
|
||
|
||
Load Accumulator (LDA)
|
||
======================
|
||
|
||
A machine code instruction. Similar to a mnemonic.
|
||
|
||
|
||
|
||
load sharing
|
||
============
|
||
|
||
The distribution of a given load among several computers on a network.
|
||
|
||
|
||
|
||
LOAD-II
|
||
=======
|
||
|
||
A BT North America program used to load code to and dump code from
|
||
nodes and slots.
|
||
|
||
|
||
|
||
|
||
Local Area Network (LAN)
|
||
========================
|
||
|
||
A geographically localized network consisting of both hardware and
|
||
software. LANs link personal computers, workstations, printers, file
|
||
servers, and other peripherals. Devices on a LAN typically transmit
|
||
data between offices in the same building or between buildings located
|
||
near each other. See token-ring, ethernet, AppleTalk, LocalTalk,
|
||
Virtual Networking Systems (VINES), and Xerox Network Systems (XNS).
|
||
|
||
|
||
|
||
|
||
Local Control Program (LCP)
|
||
===========================
|
||
|
||
Provides access control and security, call processing, virtual circuit
|
||
building, and network status information.
|
||
|
||
|
||
|
||
|
||
Local Engine Monitor (LEM)
|
||
==========================
|
||
|
||
A PC-based application used in a Small-scale Distributed Network (SDN)
|
||
to monitor and control the network, load and dump Engines, and validate
|
||
users.
|
||
|
||
|
||
|
||
local loop
|
||
==========
|
||
|
||
That part of a communications circuit between the subscriber's
|
||
equipment and the equipment in the local central office.
|
||
|
||
|
||
|
||
|
||
local partitioned
|
||
=================
|
||
|
||
Sections of memory that run software programs managed by ISIS.
|
||
|
||
|
||
|
||
|
||
local system disk
|
||
=================
|
||
|
||
The hard-disk drive included in each Turbo Engine cabinet (one disk
|
||
drive per chassis). Communication with the disk drive is through the
|
||
Small Computer Systems Interface (SCSI) and the File Server (FS) board
|
||
in each chassis (one FS board per disk drive).
|
||
|
||
|
||
|
||
Local User Directory (LUD)
|
||
==========================
|
||
|
||
A directory (resident on a host) of all valid users of that host.
|
||
|
||
|
||
|
||
|
||
LocalTalk
|
||
=========
|
||
|
||
Apple Computer proprietary low-end network solution (OSI Physical
|
||
level). LocalTalk connects the network port and a LaserWriter. Rated at
|
||
0.2304 Mbps. See AppleTalk. See also Local Area Network.
|
||
|
||
|
||
|
||
|
||
LOG-I
|
||
=====
|
||
|
||
Login Session-I. Login message format used prior to development
|
||
of LOG-II.
|
||
|
||
|
||
|
||
|
||
LOG-II
|
||
======
|
||
|
||
Login Session-II. Login message format following the CCITT X.409
|
||
protocol.
|
||
|
||
|
||
|
||
|
||
logger
|
||
======
|
||
|
||
The Turbo-SCP service that sends log messages to a file stored on the
|
||
local system disk.
|
||
|
||
|
||
|
||
logic boards
|
||
============
|
||
|
||
PC boards that govern the operations performed on the data; usually eac
|
||
step influences the next. Two examples are the Turbo Engine File Server
|
||
(FS) board and the Engine CPU board.
|
||
|
||
|
||
|
||
logical channel
|
||
===============
|
||
|
||
The channel number of a virtual circuit relative to a specific link.
|
||
|
||
|
||
|
||
|
||
logical record
|
||
==============
|
||
|
||
That portion of a packet containing data from a single user.
|
||
|
||
|
||
|
||
Logical Unit (LU)
|
||
=================
|
||
|
||
A logical assignment that allows a slot to address an I/O device. The
|
||
logical unit is mapped from a slot to a physical port; this mapping is
|
||
managed by the ISIS Kernel.
|
||
|
||
|
||
|
||
|
||
login
|
||
=====
|
||
|
||
The process whereby a user gains access to a computer or network.
|
||
|
||
|
||
|
||
|
||
Login Session-I (LOG-I)
|
||
=======================
|
||
|
||
Login message format used prior to development of LOG-II.
|
||
|
||
|
||
|
||
|
||
Login Session-II (LOG-II)
|
||
=========================
|
||
|
||
Login message format following the CCITT X.409 protocol.
|
||
|
||
|
||
|
||
|
||
login string
|
||
============
|
||
|
||
A means of gaining access to the network. The string consists of three
|
||
fields: username, destination, and password. The destination and
|
||
password are optional depending on username configuration.
|
||
|
||
|
||
|
||
|
||
logout
|
||
======
|
||
|
||
The process whereby a user exits a computer or network.
|
||
|
||
|
||
|
||
|
||
Long-Haul Network (LHN)
|
||
=======================
|
||
|
||
A large geographical area communications network.
|
||
|
||
|
||
|
||
Longitudinal Redundancy Check (LRC)
|
||
===================================
|
||
|
||
A system of parity checking for transmission errors. Data, transmitted
|
||
in block form, has a block-check or LRC character following the block.
|
||
This character is developed by forming a parity check on all bits in
|
||
the same bit position in the block.
|
||
|
||
|
||
|
||
|
||
longword
|
||
========
|
||
|
||
A sequence of 32 bits (4 bytes), based on a 16-bit word (which is
|
||
treated as a unit and stored in one register). Associated with Motorola
|
||
devices used on Turbo Engine logic boards. See word.
|
||
|
||
|
||
|
||
|
||
loop-back
|
||
=========
|
||
|
||
The method of returning signals by special switching to a test device
|
||
or center so that the characteristic and operational status of a
|
||
circuit can be evaluated.
|
||
|
||
|
||
|
||
low-speed lines
|
||
===============
|
||
|
||
AT&T designation for lines used to transmit data at rates up to 150 bps
|
||
(Series 1000).
|
||
|
||
|
||
|
||
|
||
LRC
|
||
===
|
||
|
||
Longitudinal Redundancy Check. A system of parity checking for
|
||
transmission errors. Data, transmitted in block form, has a block-check
|
||
or LRC character following the block. This character is developed by
|
||
forming a parity check on all bits in the same bit position in the
|
||
block.
|
||
|
||
|
||
|
||
|
||
LRS
|
||
===
|
||
|
||
Last Record Sent.
|
||
|
||
|
||
|
||
|
||
LSE
|
||
===
|
||
|
||
Local Systems Environment.
|
||
|
||
|
||
|
||
LSI
|
||
===
|
||
|
||
Large Scale Integration.
|
||
|
||
|
||
|
||
LSU
|
||
===
|
||
|
||
Loader Storage Unit.
|
||
|
||
|
||
|
||
|
||
LU
|
||
==
|
||
|
||
Logical Unit. A logical assignment that allows a slot to address an
|
||
I/O device. The logical unit is mapped from a slot to a physical port;
|
||
this mapping is managed by the ISIS Kernel.
|
||
|
||
|
||
|
||
|
||
LUD
|
||
===
|
||
|
||
Local User Directory. A directory (resident on a host) of all valid
|
||
users of that host.
|
||
|
||
|
||
|
||
|
||
|
||
|-|-|-|-|-|-|=|=|=|=|=|=|=|=|=|=|=|-|-|-|-|-|-|-|-|-|-|-|=|=|=|=|=|=|
|
||
|
||
Disclaimer
|
||
~~~~~~~~~~
|
||
This publication is for informational purposes ONLY.
|
||
In no way are the above authors, or organizations, liable for the
|
||
use or misuse of the information contained herein. The Underground Agent
|
||
Society Inc., The Agents Underground Notebooks, UASI, UASI Magazine, The
|
||
Global Intelligence Center, and The Global Intelligence Underground are all
|
||
unregistered trademarks of UASI. Distribution to EVERYWHERE is ENCOURAGED!
|
||
Hellfire BBS, SANctuary Magazine, SANphilez, and SANsites are all
|
||
unregistered trademarks of SANctuary. Matrix BBS, Modernz, and others are
|
||
unregistered trademarks of Modernz. Distribution of these text files is
|
||
allowed...and downright encouraged.
|
||
|
||
|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|=|-|
|
||
|
||
|
||
|
||
|
||
<*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*>
|
||
<*> <*>
|
||
<*> THIS HAS BEEN A MODERNZ PRESENTATION <*>
|
||
<*> <*>
|
||
<*> SEE YOU ALL AT MATRIX BBS (908)905-6691 <*>
|
||
<*> <*>
|
||
<*> NON-PURSUITABLE WITHOUT A GLOBAL <*>
|
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<*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*><*>
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