Kraun KR.XY, User Manual

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Manual
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DNS Domain Name System
The DNS maps domain names into IP addresses. DNS information is distributed hierarchically
throughout the Internet among computers called DNS servers. For example, www.yahoo.com is
the domain name associated with IP address 216.115.108.243. When you start to access a web
site, a DNS server looks up the requested domain name to find its corresponding IP address.
If the DNS server cannot find the IP address, it communicates with higher-level DNS servers to
determine the IP address. See domain name.
domain name A domain name is a user-friendly name used in place of its associated IP
address. Domain names must be unique; their assignment is controlled by the Internet
Corporation for Assigned Names and Numbers (ICANN). Domain names are a key element of
URLs, which identify a specific file at a web site. See DNS.
download To transfer data in the downstream direction, i.e., from the Internet to the user.
DSL Digital Subscriber Line
A technology that allows both digital data and analog voice signals to travel over existing copper
telephone lines.
encryption keys
See network keys
Ethernet The most commonly installed computer network technology, usually using
twisted pair wiring. Ethernet data rates are 10 Mbps and 100 Mbps. See also 10BASE-T,
100BASE-T, twisted pair
.
FTP File Transfer Protocol
A program used to transfer files between computers connected to the Internet. Common uses
include uploading new or updated files to a web server, and downloading files from a web
server.
Gbps Abbreviation of Gigabits per second, or one billion bits per second. Internet data rates are
often expressed in Gbps.
host A device (usually a computer) connected to a network.
HTTP Hyper-Text Transfer Protocol
HTTP is the main protocol used to transfer data from web sites so that it can be displayed by
web browsers. See web browser, web site .
Hub A hub is a place of convergence where data arrives from one or more directions and is
forwarded out in one or more directions. It connects an Ethernet bridge/router to a group of PCs
on a LAN and allows communication to pass between the networked devices.
ICMP Internet Control Message Protocol
An Internet protocol used to report errors and other network-related information. The ping
command makes use of ICMP.
IEEE The Institute of Electrical and Electronics Engineers is a technical professional society
that fosters the development of standards that often become national and international
standards.
Internet The global collection of interconnected networks used for both private and
business communications.
intranet A private, company-internal network that looks like part of the Internet (users
access information using web browsers), but is accessible only by employees.
IP See TCP/IP .
IP address Internet Protocol address