Apple Mac OS X Server Version 10.4 or Later Manual do Utilizador descarregar pdf (Página 105)

Glossary 105

ISP Internet service provider. A business that sells Internet access and often provides

web hosting for ecommerce applications as well as mail services.

KB Kilobyte. 1,024 (2

) bytes.

Kerberos A secure network authentication system. Kerberos uses tickets, which are

issued for a specific user, service, and period of time. Once a user is authenticated, it’s

possible to access additional services without retyping a password (this is called single

sign-on) for services that have been configured to take Kerberos tickets. Mac OS X

Server uses Kerberos v5.

kilobyte See KB.

LDA Local delivery agent. A mail service agent that transfers mail messages from

incoming mail storage to the email recipient’s inbox. The LDA is responsible for

handling local delivery of messages and for making mail accessible to the user’s email

application.

LDAP Lightweight Directory Access Protocol. A standard client-server protocol for

accessing a directory domain.

Lightweight Directory Access Protocol See LDAP.

list administrator A mailing list administrator. List administrators can add or remove

subscribers from a mailing list and designate other list administrators. List

administrators aren’t necessarily local machine or domain administrators.

local area network See LAN.

local domain A directory domain that can be accessed only by the computer on which

it resides.

local hostname A name that designates a computer on a local subnet. It can be used

without a global DNS system to resolve names to IP addresses. It consists of lowercase

letters, numbers, or hyphens (except as the last characters), and ends with “.local” (e.g,

bills-computer.local). Although the name is derived by default from the computer

name, a user can specify this name in the Network pane of System Preferences. It can

be changed easily, and can be used anywhere a DNS name or fully qualified domain

name is used. It can only resolve on the same subnet as the computer using it.

long name The long form of a user or group name. See also user name.

MAA Mail access agent. A mail service that communicates with a user’s email program

to download mail message headers to the user’s local computer.

MAC address Media access control address. A hardware address that uniquely

identifies each node on a network. For AirPort devices, the MAC address is called the

AirPort ID.

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Apple Mac OS X Server Version 10.4 or Later Manual do Utilizador Página 105