Glossary of Terms

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N

N

NACAM

NACSEM

NACSI

NACSIM

Nadger

Nagware

Nailed To The Wall adj.

Nailing Jelly vi.

NAK

Nano

Nanobot

Nanofortnight n.

NAR

NARA

Narrative Traffic

Narrowband Modem

NAT (network address translation)

National Communications System

National Computer Security Assessment Program

National Computer Security Center

National Coordinating Center (NCC)

National Electric Code(r)

National Information Infrastructure

National Information Infrastructure Protection Act of 1996

National Security

National Security /or Emergency Preparedness Telecommunications

National Security And Emergency Telecommunications

National Security Decision Directive

National Security Decision Directive 145

National Security Decision Directive 145 (NSDD 145)

National Security Information

National Security Systems

National Telecommunications And Information System Security Advisory/Information

NATO

Nature

NBH

NCA

NCC

NCCD

NCS

NCSC

Neats Vs. Scruffies

NEC

Necessary Bandwidth

Need-To-Know Controls

Need-To-Know Violation

Negative-Acknowledge Character

Net

Net Control Station

Net. Personality

NetBIOS

Netburp

Nethack

Netnews

Netrock

NETS

Netstat

Netter

Network

Network address translation (NAT)

Network Architecture

Network Busy Hour

Network Communications Protocols

Network Connectivity

Network Control System

Network Firewalls

Network Front End

Network IDSs (NIDSs)

Network Interface

Network Interface Device

Network Interface Unit (NIU)

Network login key

Network Manager

Network Meltdown

Network Monitoring

Network monitoring tools

Network Reference

Network Reference Monitor

Network Security

Network Security Manager (NSM)

Network Security Officer

Network Security Software

Network Switching

Network Terminal Number

Network Time Protocol (NTP)

Network Topology

Network Trusted

Network Trusted Computing Base (NTCB)

Network Utility

Network Weaving

Newbie

Newline

News

Nibble

Nick

NID

NIDS

Nightmare File System

NII

NIL

Nimda

Ninety-Ninety Rule

NISAC

NIST

NIU

NKSR

NM

No Addtional Requirements

No opt

Noddy

Node

NOFORN

Noise

NOMEX Underwear

Nominal Bit Stuffing Rate

Nominal Semidestructor

Nonce

Noncentralized Operation

Noncooperative Remote Rekeying

Non-Discretionary Security

Nonferrous Shielding

Non-Inference Model

Non-Kernel Security-Related Software (NKSR)

Non-Maskable Interrupt

Non-Optimal Solution

Nonprocedural Language

Non-Processing Input And Output Devices

Non-Removable Storage Media

Non-Repudiation

Non-Return-To-Zero Code

Non-Return-To-Zero, Change-On-Ones

Non-Secret Encryption

Nonsynchronous Network

Nonsynchronous System

Nonvolatile Memory

Non-Volatile Memory

No-Op

Not Ready For Prime Time

Notebook Computer

Notes

Notices

Notwork

NP

Nroff

NRZ

NRZ1

NSA

NSA Line Eater n.

NSAD

NSA's Ratings Maintenance Phase

NSD

NSDD

NSEP

NSI

NSM

NSO

NSP

NSRP

NSTAC

NSTISSC

NSTISSD

NSTISSI

NSTISSP

NT LAN Manager (NTLM)

NTCB

NTI

NTIA

NTIS

NTISS

NTISSAM

NTISSC

NTISSD

NTISSI

NTISSP

NTLM (NT LAN Manager)

NTM

NTN

N-Tuple

Nude

Nuke

Null

Number-Crunching

Numbers

NXX

Nybble

Network Meltdown

n. A state of complete network overload; the network equivalent of thrashing. This may be induced by a Chernobyl packet. See also broadcast storm, kamikaze packet. Network meltdown is often a result of network designs that are optimized for a steady state of moderate load and don't cope well with the very jagged, bursty usage patterns of the real world. One amusing instance of this is triggered by the the popular and very bloody shoot-'em-up game Doom on the PC. When used in multiplayer mode over a network, the game uses broadcast packets to inform other machines when bullets are fired. This causes problems with weapons like the chain gun which fire rapidly -- it can blast the network into a meltdown state just as easily as it shreds opposing monsters.