Term:	A records
ID:	11346
Source:	GeekGlossary.com (v1)
Date Added:	09/12/03
Definition:	Host name to IP address mappings in the DNS database that are used in host name resolution.

Term:	Accounting provider
ID:	11432
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Server (typically a RADIUS server) that logs the activity and connection time for a remote user. This is often used to charge remote clients for online time, as in the case of an ISP providing Internet service.

Term:	Active Directory
ID:	34108
Source:	Wikipedia.org
Date Added:	09/02/15
Definition:	Active Directory (AD) is a directory service that Microsoft developed for Windows domain networks and is included in most Windows Server operating systems as a set of processes and services.[1][2] An AD domain controller authenticates and authorizes all the users and computers in a Windows domain type network—assigning and enforcing security policies for all computers and installing or updating software. For example, when a user logs into a computer that is part of a Windows domain, Active Directory checks the submitted password and determines whether the user is a system administrator or normal user.[3] Active Directory makes use of Lightweight Directory Access Protocol (LDAP) versions 2 and 3, Microsoft's version of Kerberos, and DNS.

Term:	Active Directory (AD) services
ID:	11245
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Enterprise-level directory service designed to combine domain structures into a manageable, extensible, network structure.

Term:	active directory integrated zones
ID:	11371
Source:	GeekGlossary.com (v1)
Date Added:	09/12/03
Definition:	DNS zones stored in the Active Directory database and replicated along with other Active Directory information.

Term:	Active Directory Users and Computers
ID:	11433
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Tool used to configure the objects in the Windows 2000 Active Directory. Among other things, you use this tool to configure the properties of user accounts. Dial-in properties for a user include whether the user may dial in to the RRAS server and whether a callback number should be used.

Term:	Address Resolution Protocol (ARP)
ID:	11283
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Lower-layer protocol that resolves a known IP address to a MAC address.

Term:	Address Resolution Protocol (ARP)
ID:	11474
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Low-level protocol that resides within the IP protocol. It is used as a way of resolving IP addresses to MAC addresses.

Term:	ADSL (Asymmetrical Digital Subscriber Line)
ID:	11342
Source:	GeekGlossary.com (v1)
Date Added:	08/31/03
Definition:	ADSL is the most common form of residential DSL service. Asymmetrical means "not equal on both sides". The asymmetrical part of ADSL is the data transfer rate. Data is sent from the Central Office [CO] to your ADSL modem(download) at a very high rate of speed. When you send data back to the CO (upload), it is sent at a much lower rate of speed. It is this arrangement that allows ADSL service to have a reasonable cost and to use the existing telephone lines that lead to and run throughout your home. Since ADSL uses the ordinary telephone lines in your home, small micro-filters must be placed on the line so that the noise of the ADSL transmissions can't be heard on the line. This allows ADSL data transmissions and telephone calls to be conducted over the line simultaneously. The availability of ADSL is limited by the distance from a CO, as well as the condition of the telephone wiring in a person's home. Some older phone lines are not capable of handling ADSL connections.

Term:	Advanced Research Projects Agency Network (ARPANet)
ID:	11284
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Original name for the Internet; ARPA was the government agency responsible for sponsoring the research that lead to the TCP/IP protocol stack and the modern-day Internet.

Term:	ANDing
ID:	11285
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Logically combining binary numbers; the results are similar to multiplying binary numbers; ANDing a 1 and a 1 gives a 1. All other combinations (1 and 0, and 0 and 0) result in 0.

Term:	Application Programming Interface (API)
ID:	11410
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Standardized set of commands and programming parameters used to simplify the interaction between applications and lower-level networking components.

Term:	area border routers
ID:	11475
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	OSPF router that has an interface in more than one OSPF area.

Term:	areas
ID:	11476
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	OSPF division of the internetwork into collections of contiguous networks that help keep routing tables from growing too large. Each router only keeps a link-state database for those areas connected to the router.

Term:	Asynchronous Transfer Mode (ATM)
ID:	11246
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Cell-based LAN/WAN networking technology that can handle voice, video, and data traffic; Windows 2000 provides native ATM support.

Term:	attributes
ID:	11247
Source:	GeekGlossary.com (v1)
Date Added:	08/22/03
Definition:	Specific values associated with an object; an example is the attribute of First or Last name for the User object.

Term:	authentication
ID:	11434
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	(1) Process of verifying a user?s credentials so that the user may log on to the system. Authentication is normally performed using a username and password. Authentication may be unencrypted (clear text) or use any of a number of encryption types. ``(2) A method for validating the identity of a user or a computer. IPSec supports three modes of encryption: Kerberos, certificates, and pre-shared keys.

Term:	authority
ID:	11372
Source:	GeekGlossary.com (v1)
Date Added:	09/12/03
Definition:	Ability to control what resource records, subdomains, and other attributes are associated with a particular DNS domain.

Term:	Automatic Private IP Addressing (APIPA)
ID:	11345
Source:	GeekGlossary.com (v1)
Date Added:	09/12/03
Definition:	New feature in Windows 98 and Windows 2000 that allows DHCP clients to select an IP address from the private range 169.254.0.0/16 whenever they cannot find a DHCP server on the local segment.

Term:	autonomous system
ID:	11477
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	One in which a set of networks and routers are all under the same administration.

Term:	b-node
ID:	11411
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	NetBIOS node type that uses broadcasts to resolve NetBIOS names to IP addresses.

Term:	backbone area
ID:	11478
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	OSPF areas connected by a special type of area called a backbone area.

Term:	backbone router
ID:	11479
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Any router configured in an OSPF backbone area.

Term:	Bandwidth Allocation Control Protocol (BACP)
ID:	11435
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	See Bandwidth Allocation Protocol (BAP).

Term:	Bandwidth Allocation Protocol (BAP)
ID:	11436
Source:	GeekGlossary.com (v1)
Date Added:	11/15/03
Definition:	Together with the Bandwidth Allocation Control Protocol (BACP), allows a client to add and remove links dynamically during a multilink session to adjust for changes in bandwidth needs.