Cyclades AlterPath BladeManager User Manual

Page 189

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Glossary

AlterPath Manager E2000 Manual

Glossary-3

Cluster

A cluster is a group of one or more computers working as a

group to execute a certain task. From the user standpoint, a
cluster acts as a large computer system.

Console

Terminal used to configure network devices at boot (start-up)

time. Also used to refer to the keyboard, video and mouse
user interface to a server.

Console Port

Most of the equipment in a data center (servers, routers,

switches, UPS, PBX, etc.) has a serial console port for out-
of-band management purposes.

DHCP

Dynamic Host Configuration Protocol. A protocol for

automatic TCP/IP configuration that provides static and
dynamic address allocation and management.

DHCP enables individual computers on an IP network to

extract their configurations from a server (the 'DHCP server')
or servers, in particular, servers that have no exact
information about the individual computers until they request
the information. The overall purpose of this is to reduce the
work necessary to administer a large IP network. The most
significant piece of information distributed in this manner is
the IP address.

DNS Server

Domain Name Server. The computer you use to access the

DNS to allow you to contact other computers on the Internet.
The server keeps a database of host computers and their IP
addresses.

Domain Name

The unique name that identifies an Internet site. Domain

Names always have 2 or more parts, separated by dots. The
part on the left is the most specific, and the part on the right is
the most general. A given machine may have more than one
Domain Name but a given Domain Name points to only one
machine. For example, the domain names: matisse.net,
mail.matisse.net, workshop.matisse.net can all refer to the
same machine, but each domain name can refer to no more
than one machine. Usually, all of the machines on a given

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