Each entry in an Access Control List is known as an Access Control entry (ACE).
Access Control List (ACL)
An Access Control List is a list of users that can access an object and the specific actions that the user can perform on the object.
account lockout
A security feature that is used to disable an account when certain procedures are violated, such as the number of times a user attempts to log on unsuccessfully.
account policies
Used to configure the security attributes for the user accounts in the domain. This policy will be the default policy for any machines that are members of the domain. However, you can set an account policy at the OU level, but these settings will apply only to the local user accounts of the nondomain controller computers contained in that OU.
active directory
A centralized resource and security management, administration, and control mechanism in Windows Server 2003 that is used to support and maintain a Windows Server 2003 domain. The Active Directory is hosted by domain controllers.
active directory users and computers
The MMC used to manage users, groups, computer accounts, and resources, as well as OUs and Group Policies.
administrative tools
The included applications that are used to manage the server and network.
Advanced Configuration and Power Interface (ACPI)
ACPI is the current standard for communication with a motherboard's Basic Input/Output System (BIOS). With ACPI, all devices that have power-management capabilities (such as sleep mode or hibernation) can be controlled by the operating system. This allows the operating system to selectively shut down devices not currently in use to give maximum battery life to portable computing devices. ACPI is also needed for the OnNow Device Power Management initiative, which allows a user to start his or her computer by simply touching any key on the computer's keyboard. ACPI is installed only if all components detected during setup support power management.
application pool
A set of one or more applications assigned to a set of one or more IIS worker processes. An application pool can contain websites, applications, and virtual directories. Each application pool is isolated from the others. Because of this, a failure or memory leak will affect only the processes running in that application pool and will have no effect on any of the other functions in other application pools.
application server mode
The Application Server mode of Terminal Services allows the system administrator to load common applications that can be shared by multiple users. Although an unlimited number of connections is supported, each connection requires a license, called a Terminal Server Client Access License (TSCAL).
auditing
The recording of the occurrence of a defined event or action.
audit policy
A policy used to track access to resources. Typical events include valid or invalid logon attempts and the accessing of resources such as the opening, reading, or deletion of a file or folder.
authentication
The process of being identified by the server and/or network.
Automated System Recovery (ASR)
ASR works by making a backup of the boot partition and System State to tape or other media and then saving the catalog and other operating system information, such as disk partition information, to a floppy disk. When a problem occurs that cannot be fixed by using any of the other repair and recovery methods, or when you have replaced a failed boot drive, you can restore the boot partition by booting your server from the Windows Server 2003 CD and then inserting the diskette and the backup media created by the ASR process.
