- FAKDIS = Foreningen Af Kommercielle Danske Internet Sites
-
www.fakdis.dk
- FAQ = Frequently Asked Questions
-
omicron.felk.cvut.cz/FAQ/
- FastTrack
- Web server fra Netscape - købt af Novell
- FAT = File Allocation Table
-
-
http://www.nondot.org/sabre/os/files/FileSystems/fatFilesystem.txt
- Filsystemets 'indholdsfortegnelse' i diskens yderste spor. Indeholder filnavnet,
attributter, størrelse, oprettelses/ændrings-dato, fysisk placering (filens første sektor-nr på disken).
FAT, FAT16
- i DOS, Windows 3.1, 95
Med Filename.ext (8+3). Max 512 filer i harddiskens rod, 224 på diskette
16-bit real-mode.
Max 2GB partition
- FAT32
- i Windows 95 OSR2, 98, ME, 2000, XP
Harddisk size: - 2TB (2000 GB)
Max 127GB partition.
- > NTFS, VFAT, partition
- FAX
-
- gruppe 1
- analog - 6 min pr side. Forældet
- gruppe 2
- analog - 3 min pr side.
- gruppe 3
- digital - 1 min pr side. 9600 bps + kompression. 200 dpi. CCITT 1980
- gruppe 4
- ISDN standard 19200 bps. 400 dpi. 1984
- FCA = Fibre Channel Association
-
www.fibrechannel.com
- FDC = Floppy Drive Controller
-
- FDDI = Fiber Distributed Data Interface
- ANSI (ISO 9314) LAN data-link
ptotocol (IEEE 802.2 LLC) for 100 Mbps multimode fiber - using
token passing (data are appended to token) and ring-topology. Max 2 km between nodes, max 100 km ring. (>
Token Ring)
Velegnet til backbone.
2 ringe:
- primærring benyttes normalt til token og data
- sekundærringen benyttes ved brud på primærringen
Computere kan være:
- klasse A med Dual-Attach (til begge ringe)
- klasse B med Single-Attach
> PMD, 4B/5B coding
FDDI/UTP
> CDDI
FDDI II
The proposed ANSI standard to enhance FDDI. FDDI II will provide isochronous transmission for connectionless data
circuits and connection-oriented voice and video circuits.
- FDIH = Foreningen for Dansk Internet Handel
-
www.fdih.dk
- FDMA = Frequency Division Multiple Access
- The technology used in the analog cellular telephone network that divides the spectrum into 30KHz channels.
> TDMA, CDMA, CDPD
- FedCIRC = Federal Computer Incident Response Capability
- > CERT
-
fedcirc.llnl.gov
- FEP = Front End Processor
- benyttes af IBM mainframe til polling af terminaler i SNA-net.
>CPU
- FIB = Foreningen af Internet Brugere
-
www.fib.dk
- FidoNet
- Globalt virtuelt amatør-netværk af BBS'er, som udveksler elektronisk post.
- FIFO = First In First Out
- Kø
- FIL = Foreningen af Internet Leverandører
-
www.fil.dk
- file
- TCP/IP protocol for local files (
file://)
> URL
File name, filnavn
http://www.filename.info/
File type, Filtype >Extensions
- Finger
- Undersøger om en bruger er tilsluttet Internettet
Windows NT: FINGER.EXE (DOS program)
> DUA, X.500
- FIPS = Federal Information Processing Standards
- PUB 46: the DES encryption algorithm
PUB 191: Guidelines for the Analysis of LAN security
- Firehunter
- Overvåger Internet-services. Udviklet af Hewlet-Packard
- firewall
- (1) Isolation of LAN segments from each other to protect data resources and help manage traffic.
(2) Hardware or software that restricts traffic to a private network from an unsecured network.
- En ægte Firewall er server-baseret. NB: Firewall-funktioner findes også i router,
gateway, bridge.
Filters packets between two networks.
Forhindrer uautoriseret adgang.
Indeholder ofte en proxy server.
May provide audit reports.
-
- [whatis]: A firewall is a set of related programs, located at a network gateway
server, that protects the resources of a private network from users from other networks. (The term also implies the
security policy that is used with the programs.) An enterprise with an intranet that allows its workers access to the
wider Internet installs a firewall to prevent outsiders from accessing its own private data resources and for
controlling what outside resources its own users have access to.
Basically, a firewall, working closely with a router program, filters all network packets to determine whether to
forward them toward their destination. A firewall also includes or works with a proxy server that makes network
requests on behalf of workstation users. A firewall is often installed in a specially designated computer separate
from the rest of the network so that no incoming request can get directly at private network resources.
There are a number of firewall screening methods. A simple one is to screen requests to make sure they come from
acceptable (previously identified) domain names and IP addresses. For mobile users, firewalls allow remote access in
to the private network by the use of secure logon procedures and authentication certificates.
A number of companies make firewall products. Features include logging and reporting, automatic alarms at given
thresholds of attack, and a graphical user interface for controlling the firewall.
-
- > FWPD
www.clark.net/pub/mjr/pubs/fwfaq/ =
C:\Download\PC\NetSafe\Clark\FireWall FAQ\fwfaq.html : Internet Firewalls FAQ (Marcus J. Ranum and Matt Curtin,
1998/05/26)
csrc.nist.gov/publications/nistpubs/800-10/
: Keeping Your Site Comfortably Secure: An Introduction to Internet Firewalls (feb. 95)
www.admin.dk/Gauntlet67spm.html : 67 vigtige spørgsmål og svar om
FIREWALLs
www.zeuros.co.uk/generic/resource/firewall/ : The
Resource - Firewalls
- FireWire
- Apple serial transfer protocol. 100, 200, 400 Mbps.
This specification for a high-bandwidth bus, that can transfer data at rates of 100-400 Mbps,
is particularly suited for interconnecting PCs, peripherals and audio/video equipment.
> IEEE 1394, USB
-
www.firewire.org
- FIRST = Forum of Incident Response and Security Teams
- > CERT
-
www.first.org
- FirstClass
- Groupware made by SoftArc
-
www.firstclass.com
- FOIRL = Fiber-Optic InterRepeater Link
- Fiber-optic signaling methodology based on the IEEE 802.3 fiber-optic specification.
FOIRL is a precursor of the 10BaseFL specification, which is designed to replace it.
- FOLDOC = Free OnLine Dictionary Of Computing
-
> wombat.doc.ic.ac.uk/foldoc/
- formatering
- >partitionering, FAT
- FPNW = File and Print services for NetWare
- NetWare 3.12 compatible server emulation in Windows NT 3.51 Server
- FPU = Floating Point Unit
- Coprocessor, Numeric data processor
Selvstændig processor i 8088, 80286 og 80386 systemer
Integreret med 80486 og Pentium cpu
- FQDN = Fully Qualified Domain Name
- Navn på en bestemt webserver i et domæne - ex: www.microsoft.com
- www : webserver
- microsoft.com : domain name
> DN, URL
- FRAD = Frame Relay Assembler/Disassembler
- a combination CSU/DSU and router that connects an internal
network to a frame relay connection by converting data packets to/from frame relay format.
- Frame Relay
- Layer 2 packet-switching protocol - til WAN forbindelse.
Frame Relay er valget, hvis man bruger nettet mere end 2-3 timer om dagen, eller hvis man har behov for større
kapacitet, end ISDN tilbyder. Frame Relay leveres (i Sektornet)
i kapaciteter mellem 64 kbps og 2 Mbps. Der betales en oprettelsesafgift og derefter et fast kvartalsabonnement.
Fordelen er, at man ikke behøver være bange for, at brugen af nettet medfører uforudsete høje teleregninger. Prisen er
fast uanset forbruget.
Frame relay is a telecommunication service designed for cost-efficient data transmission for intermittent traffic
between local area networks (LANs) and between end-points in a wide area network (WAN). Frame relay puts data in a
variable-size unit called a frame and leaves any necessary error correction (retransmission of data) up to the
end-points, which speeds up overall data transmission. For most services, the network provides a permanent virtual
circuit (PVC), which means that the customer sees a continous, dedicated connection without
having to pay for a full-time leased line, while the service provider figures out the route each frame travels to its
destination and can charge based on usage. An enterprise can select a level of service quality - prioritizing some
frames and making others less important. Frame relay is offered by a number of service providers, including AT&T.
Frame relay is provided on fractional or full T-1 carriers. Frame relay complements and provides a mid-range service
between ISDN, which offers bandwidth at 128 Kbps, and Asynchronous Transfer Mode (ATM),
which operates in somewhat similar fashion to frame relay but at speeds from 155.520 Mbps or 622.080 Mbps.
Frame relay is based on the older X.25 packet-switching technology which was designed for
transmitting analog data such as voice conversations. Unlike X.25 which was designed for analog signals, frame relay
is a fast-packet technology, which means that the protocol does not attempt to correct errors. When an error is
detected in a frame, it is simply "dropped." (thrown away). The end points are responsible for detecting and
retransmitting dropped frames. (However, the incidence of error in digital networks is extraordinarily small relative
to analog networks.)
Frame relay is often used to connect local area networks with major backbones as well as on public wide area networks
and also in private network environments with leased lines over T-1 lines. . It requires a dedicated connection during
the transmission period. It's not ideally suited for voice or video transmission, which requires a steady flow of
transmissions. However, under certain circumstances, it is used for voice and video transmission.
Frame relay relays packets at the data-link layer of the Open Systems Interconnection (OSI)
model rather than at the network layer. A frame can incorporate packets from different protocols such as Ethernet and
X.25. It is variable in size and can be as large as a thousand bytes or more.
- FreeBSD
- FreeBSD is an advanced operating system for x86 compatible, amd64 compatible, Alpha/AXP, IA-64, PC-98 and
UltraSPARC architectures. It is derived from BSD, the version of UNIX
developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals.
Additional platforms are in various stages of development.
>LINUX
-
http://www.freebsd.org/
- freeware
- Gratis program, som frit kan kopieres og bruges. Programmet tilhører dog producenten, som har
ophavsretten, men udtrykkeligt har tilladt fri kopiering og brug.
>shareware
- FSF = Free Software Foundation
- founded by Richard Stallman, FSF maintains GNU software for Unix
and Linux
- FTP = File Transfer Protocol
- TCP/IP protokol, som på Internettet benyttes til
transport af filer. Især benytes FTP-protokollen til vedligeholdelse af web-sider, fordi filer kan kopieres begge veje
(upload og download) mellem webserver og klient.
Der bruges to porte på serveren til en FTP-overførsel: Data overføres via IP-port 20 -
kontrolsignaler via port 21.
- In an URL,
ftp:// assumes that the connection will be made using regular
anonymous FTP - but it is possible to specify username and password: ftp://username:password@server/directory...
-
- > Archie, BITFTP, RFC 172,
TFTP
-
www.networksorcery.com/enp/protocol/ftp.htm
Codetalker Tutorial - FTP Reviewed
FTPplanet.com - A community site for users of FTP
www.acs.appstate.edu/~krb/syllabus/ftp.html
http://slacksite.com/other/ftp.html : Active FTP vs. Passive FTP
-
FTP klienter (programmer):
- >WS_FTP
FTP servere:
-
ftp.funet.fi
ftp.sunet.se
ftp.simtel.net
ftp.cdrom.com : Walnut Creek CD-ROM'er
- FWA = Fixed Wireless Access
- Et FWA-system består af små kortrækkende radiosendere, som monteres i eksisterende GSM-master
eller andre steder. Kunderne får en lignende antenne på deres tag, og bliver dermed forbundet konstant trådløst til et
netværk, som oftest Internettet. Hastighederne er på højde med ADSL. FWA arbejder i
frekvensbåndene 3,5 GHz og 26 GHz, hvor sidstnævnte primært udbydes til virksomheder med store båndbreddebehov.
Rækkevidden er op til 10 km.
- FWPD = Firewall Product Developers
- Consortium
> NCSA
- PC - Buzz - 1
A B C D E
F G H I J
K L M N O
P Q R S T
U V W X Y
Z *