Apple Xserve Up Mac OS X Server Specifications download pdf (Page 311)

Glossary 311

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

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

possible to access additional services without retyping a password (called single sign-

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

uses Kerberos v5.

Kerberos Key Distribution Center See KDC.

Kerberos realm The authentication domain comprising the users and services that are

registered with the same Kerberos server. The registered users and services trust the

Kerberos server to verify each other’s identities.

kernel The part of an operating system that handles memory management, resource

allocation, and other low-level services essential to the system.

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

accessing a directory domain.

lease period A limited period of time during which IP addresses are assigned. By using

short leases, DHCP can reassign IP addresses on networks that have more computers

than available IP addresses.

Lightweight Directory Access Protocol See LDAP.

Line Printer Remote See LPR.

local directory domain A directory of identification, authentication, authorization,

and other administrative data that’s accessible only on the computer where it resides.

The local directory domain isn’t accessible from other computers on the network.

local domain A directory domain that can be accessed only by the computer it resides

on.

local home directory See local home folder.

local home folder A home folder that resides on disk on the computer a user is logged

in to. It’s accessible only by logging directly in to the computer where it resides, unless

you log in to the computer using SSH.

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”

(For example, bills-computer.local). Although the default name is derived from the

computer name, a user can specify this name in the Sharing 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.

1 2 ... 306 307 308 309 310 311 312 313 314 315 316 ... 328 329

No comments

Apple Xserve Up Mac OS X Server Specifications Page 311