A level of permission that can be set on a file or a directory
allowing specified users access within an NTFS directory. An access
control entry (ACE) is an entry in the list.
ACL
See access control list (ACL).
active caching
A mechanism used to automatically initiate new requests to
update cached file objects without user intervention. Requests can
be activated based on the length of time an object has been cached
or was last retrieved from the source location of the object. This
type of caching can be used to ensure the freshness of specified
data within the cache. See also passive
caching.
An improved version of Digest
authentication that is provided for user accounts stored in
Active Directory in a Windows Server 2003 domain. With this
method, user credentials are stored on domain controllers as an MD5
hash, rather than in a reversibly encrypted form, and cannot
feasibly be recovered by anyone with access to a domain controller.
See also Basic
authentication and Integrated
authentication.
alerting
A feature that notifies administrators about suspicious network
events, such as rejected packets, protocol violations, and a full
hard disk. Alerts can log events to the system event log, run a
specified command line, send an SMTP e-mail message to specified
recipients, and stop or start specified ISA Server services.
API
See application programming interface (API).
application
filter
A firewall extension that registers for and processes events
related to connection with another network. Application filters are
typically designed to enhance the security provided by a firewall
by excluding or modifying data that approaches the network.
application
gateway
Computer software intended to maintain security on a secluded
network yet allow certain traffic to go between the private network
and the outside world. See also firewall.
application
programming interface (API)
A set of routines used by an application to direct the
performance of procedures by a computer's operating system.
array
An administrative unit that provides access to the ISA Server
configuration settings that are contained in the hierarchy of
administration COM objects for an ISA Server computer. Each ISA
Server computer is associated with a single array. In ISA
Server 2004 Standard Edition, an array contains a single ISA
Server computer.
array member
An ISA Server computer that is associated with an array.
asynchronous I/O
A feature that allows some input/output (I/O) functions to
return immediately, even though an I/O request is still pending.
Asynchronous I/O enables an application to continue with other
processing and wait for the I/O to be completed at a later time.
Asynchronous I/O is also called overlapped I/O.