124
Glossary
en / en / A31008-M2218-L101-3-7619 / glossary.fm / 20.03.2012
V
e
rsion 2, 27.0
5
.2010
Internet
Global
WAN
. A series of protocols known as TCP/IP have been defined for exchanging
data.
All
network subscribers
are identifiable by an
IP address
.
DNS
assigns a
domain name
to the
IP address
.
Important services on the Internet include the World Wide Web (WWW), e-mail, file
transfer and discussion forums.
Internet service provider
Enables access to the Internet for a fee.
Internet telephony
Voice over IP.
IP (Internet Protocol)
TCP/IP protocol on the
Internet
. IP is responsible for the addressing of subscribers in a
network
using
IP addresses
, and routes data from a sender to the recipient. IP deter-
mines the paths (routing) along which the data packets travel.
There are standard IPv4 and IPv6 protocols; the essential difference is the structure of
the IP addresses.
IP address
A unique address for a network component within a network based on the TCP/IP pro-
tocols (e.g., LAN, Internet). On the
Internet
, domain names are usually assigned
instead of IP addresses.
DNS
assigns the corresponding IP address to the domain
name.
The IPv4 IP address has four parts (decimal numbers between 0 and 255) separated by
full stops (e.g., 230.94.233.2).
The IP address is made up of the network number and the number of the
network sub-
scriber
(e.g., phone). Depending on the subnet mask, the first, second or third part
makes up the network number and the rest of the IP address addresses the network
component. The network number of all the components in any one network must be
identical.
IP addresses can be assigned automatically with DHCP (dynamic IP addresses) or man-
ually (static IP addresses).
See also:
DHCP
.
IP pool range
Range of IP addresses that the DHCP server can use to assign dynamic IP addresses.
L
LAN
Local Area Network
Network with a restricted physical range. A LAN can be wireless (WLAN) and/or wired
(Ethernet).
LDAP
Lightweight Directory Access Protocol
Service for managing directories across a network.
LDAP is used to store and access information about individuals who are part of an
organisation (e.g., employees).