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Ethernet, Exposed host, Dynamic ip addresses – Siemens gigaset SE551 User Manual

Page 159: T the, Encryption, Dyndns, Ting

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157

Glossary

Gigaset SE551 WLAN dsl/cable / deutsch / A31008-M1029-B101-1-19 / glossary.fm / 25.10.2006

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DoS attack
Denial of Service
A DoS attack is a particular form of hacker attack directed at computers and networks
with a connection to the

Internet

. The aim is not so much to steal data but to paralyse

the computer or network so severely that the network resources are no longer available.
A typical hacker attack involves making a remote computer announce that it is acting for
the paralysed computer, for example, and receive the data meant for you.

DSL
Digital Subscriber Line
DSL is a data transmission technique in which a connection to the

Internet

can be run

at 1.5

Mbps

over normal telephone lines. A DSL connection is provided by an

Internet

Provider

. It requires a DSL modem.

Dynamic IP address
A dynamic

IP address

is assigned to a network component automatically by the

DHCP

.

This means that the IP address of a network component can change with every login or
at certain intervals.
See also

Static IP address

DynDNS
Dynamic DNS
The assignment of

Domain names

and

IP addresses

is handled by the Domain Name

Service (

DNS

). For

Dynamic IP addresses

this service is now enhanced with so-called

Dynamic DNS (DynDNS). It enables the use of a network component with a dynamic
IP address as a

Server

on the Internet. DynDNS ensures that a service can always be

addressed on the

Internet

under the same Domain name regardless of the current

IP address.

Encryption
Encryption protects confidential information against unauthorised access. With an
encryption system, data packets can be sent securely over a network. The Gigaset SE551
WLAN dsl/cable offers

WEP

encryption and

WPA

for secure data transmission over wire-

less networks.

Ethernet
Ethernet is a network technology for local networks (

LANs

) defined by the

IEEE

as stand-

ard IEEE 802.3. Ethernet uses a base band cable with a transmission rate of 10 or 100

Mbps

.

Exposed Host
Exposed Host refers to a PC outside the firewall.
See also

DMZ