50
12. Glossary (Explanation of terminology):
Client:
The term Client is often used colloquially to mean computers in a computer network on which
preferred client applications are performed.
MAC address:
The MAC address (Media Access Control, Ethernet ID or, with Apple, Airport ID and Ethernet ID)
is the hardware address of every individual network adapter, and is used as a unique identifi er for
devices in a network. The MAC address is often found on the network card, integrated into the
serial number. You can also locate the address using software; various commands are required
depending on the operating system.
SPI:
Stateful Packet Inspection
(SPI) refers to a dynamic packet fi lter whereby every data packet is
assigned a specifi c active session. The data packets are inspected and the connection state is
included in the decision. During the process of this connection in the fi rewall, the data packets
are inspected and entered into tables. A data packet comparison and the table determine whether
the data packet is passed through. Data packets that cannot be assigned certain criteria are
not allowed through. In security-relevant applications, fi rewalls that use the SPI procedure are
therefore superior to the standard packet fi lter fi rewalls.
Web:
The World Wide Web (shortened to Web or www) is a system of hypertext documents that is
retrievable over the Internet. The user needs a Web browser to retrieve the data from the Web
server or to display the information on a screen, for example. In the document, the user can
navigate the hyperlinks (which refer to other documents) regardless of the Web server on which
the hyperlinks are saved.
FTP:
The File Transfer Protocol
is a network protocol for transferring fi les over TCP/IP networks. It is
used for transferring fi les from a server to a client (download), from a client to a server (upload) or
client-controlled between two servers. FTP is also used for creating and reading fi les, as well as
for renaming and deleting fi les.
Telnet:
Telnet
(
Tel
ecommunication
Net
work) is the name of a widely-used network protocol on the
Internet. It is usually used to allow users access to Internet processors by means of the command
line.
SNMP:
The
Simple Network Management Protocol
is a network protocol that was developed for
monitoring and controlling network elements (routers, servers, switches, printers, computers
etc.) from a central station.
Ping:
Ping
is a program used to test whether a particular host or computer is reachable in a network
and for determining its response rate.
WAN:
A
Wide Area Network
is a computer network that, in contrast to a LAN, covers a very large
geographical area.
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02.10.2007 11:14:43 Uhr
02.10.2007 11:14:43 Uhr
