S


scope

A range of IP addresses that are available to be leased or assigned to DHCP clients by the DHCP service.

See also Dynamic Host Configuration Protocol (DHCP).

See also IP address.

See also lease.

secure channel (Schannel)

A Security Support Provider (SSP) that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) Internet standard authentication protocols.

See also Transport Layer Security (TLS).

secure dynamic update

The process in which a DNS client submits a dynamic update request to a DNS server and the DNS server performs the update only if the client is authenticated.

See also authentication.

See also dynamic update.

security association (SA)

A combination of identifiers, which together define Internet Protocol security (IPSec) that protects communication between sender and receiver. An SA is identified by the combination of a Security Parameters Index (SPI), destination IP address, and security protocol (Authentication Header (AH) or Encapsulating Security Payload (ESP)). An SA must be negotiated before secured data can be sent.

See also Internet Protocol security (IPSec).

See also IP address.

server cluster

A group of computers, known as nodes, working together as a single system to ensure that mission-critical applications and resources remain available to clients. A server cluster presents the appearance of a single server to a client.

See also node.

shortcut trust

A trust that is manually created between two domains in the same forest. The purpose of a shortcut trust is to optimize the interdomain authentication process by shortening the trust path. Shortcut trusts are transitive and can be one-way or two-way.

See also Active Directory.

See also domain.

See also forest.

See also trust relationship.

See also two-way trust.

single point of failure

Any component in your environment that would block data or applications if it failed.

site

One or more well-connected (highly reliable and fast) TCP/IP subnets. A site allows administrators to configure Active Directory access and replication topology to take advantage of the physical network.

See also Active Directory.

See also subnet.

See also Transmission Control Protocol/Internet Protocol (TCP/IP).

site link

An Active Directory object that represents a set of sites that can communicate at uniform cost through some intersite transport. For Internet Protocol (IP) transport, a typical site link connects just two sites and corresponds to an actual wide area network (WAN) link. An IP site link connecting more than two sites might correspond to an asynchronous transfer mode (ATM) backbone connecting more than two clusters of buildings on a large campus or several offices in a large metropolitan area connected via leased lines and IP routers.

See also Active Directory.

See also asynchronous transfer mode (ATM).

See also Internet Protocol (IP).

See also site.

See also site link bridge.

See also wide area network (WAN).

site link bridge

An Active Directory object that represents a set of site links, all of whose sites can communicate via some transport. Typically, a site link bridge corresponds to a router (or a set of routers) in an Internet Protocol (IP) network. By default, the Knowledge Consistency Checker (KCC) may form a route through any and all site links in a transitive manner. If this behavior is turned off, each site link represents its own distinct and isolated network. Sets of site links that can be treated as a single route are expressed through a site link bridge. Each bridge represents an isolated communication environment for network traffic.

See also Active Directory.

See also Internet Protocol (IP).

See also Knowledge Consistency Checker (KCC).

See also site.

See also site link.

snap-in

A type of tool that you can add to a console supported by Microsoft Management Console (MMC). A stand-alone snap-in can be added by itself; an extension snap-in can be added only to extend the function of another snap-in.

See also Microsoft Management Console (MMC).

subnet

A subdivision of an Internet Protocol (IP) network. Each subnet has its own unique subnetted network ID.

See also Internet Protocol (IP).

subnet mask

A 32-bit value that enables the recipient of Internet Protocol version 4 (IPv4) packets to distinguish the network ID and host ID portions of the IPv4 address. Typically, subnet masks use the format 255.x.x.x. IPv6 uses network prefix notations rather than subnet masks.

See also IP address.

See also network ID.

superscope

An administrative grouping feature that supports a DHCP server's ability to use more than scope for each physical interface and subnet. Superscopes are useful under the following conditions: If more DHCP clients must be added to a network than were originally planned, if an Internet Protocol (IP) network is renumbered, or if two or more DHCP servers are configured to provide scope redundancy and fault-tolerant design DHCP service for a single subnet. Each superscope can contain one or more member scopes (also known as child scopes).

See also fault tolerance.

See also scope.

See also subnet.

switch

A computer or other network-enabled device that controls routing and operation of a signal path. In clustering, a switch is used to connect the cluster hosts to a router or other source of incoming network connections.

Systems Management Server (SMS)

A Microsoft product that includes inventory collection, software deployment, and diagnostic tools. SMS automates the task of upgrading software, allows remote problem solving, provides asset management information, and monitors software usage, computers, and networks.




Microsoft Corporation Microsoft Windows Server 2003 Deployment Kit(c) Deploying Network Services 2003
Microsoft Corporation Microsoft Windows Server 2003 Deployment Kit(c) Deploying Network Services 2003
ISBN: N/A
EAN: N/A
Year: 2004
Pages: 146

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