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ICMP
See Internet Control Message Protocol (ICMP).
identities, multiple
See multiple identities.
identity
A person or entity that must be verified by means of authentication, based on criteria such as a password or a certificate.See also authentication.See also certificate.
IEEE
Institute of Electrical and Electronics Engineers, founded in 1963. IEEE is an organization composed of engineers, scientists, and students, best known for developing standards for the computer and electronics industry.
IETF
See Internet Engineering Task Force (IETF).
IIS
See Internet Information Services (IIS).
IIS 5.0 isolation mode
Internet Information Services (IIS) 6.0 isolation mode that simulates the IIS 5.0 Web process model.
IIS Admin Objects
A set of methods, provided by Internet Information Services (IIS), that allow applications to access and modify configuration settings in the metabase.
IIS Server Instance resource
A server-instance designation used with Internet Information Services (IIS) that supports the WWW and FTP services. IIS server instances are supported as cluster resources by a Resource DLL. IIS Server Instance resources can have dependencies on IP Address resources, Network Name resources, and Physical Disk resources. Access information for server instances does not fail over.See also failover.See also Internet Information Services (IIS).
impersonation
A circumstance that occurs when Windows allows one process to take on the security attributes of another.See also attribute.See also security.
impersonation token
An access token that captures the security information of a client process, allowing a service to "impersonate" the client process in security operations.
in-memory metabase
An image of the Internet Information Services (IIS) metabase that has been loaded from disk into the computer's RAM memory and is used while IIS is running.See also metabase.
in-process
Internet Server API (ISAPI) extensions that are hosted in the worker process address space.See also Internet Server Application Programming Interface (ISAPI).
in-schema property
A metabase property predefined in the metabase schema (MBSchema.xml) file.See also metabase schema.
inheritance
In security, a mechanism that allows a specific access control entry (ACE) to be copied from the container where it was applied to all children of the container. Inheritance can be used to manage access to a whole subtree of objects in a single update operation.In Active Directory, the ability to build new object classes from existing object classes. The new object is defined as a subclass of the original object class. The original object class becomes a superclass of the new object. A subclass inherits the attributes of the superclass, including structure rules and content rules.In Group Policy, a mechanism that allows policy settings in Group Policy objects (GPOs) that are linked to parent containers to be applied to objects in child containers.See also Active Directory.
input/output (I/O)port
A channel through which data is transferred between a device and the microprocessor. The port appears to the microprocessor as one or more memory addresses that it can use to send or receive data.
Integrated Services Digital Network (ISDN)
A digital phone line used to provide higher bandwidth. ISDN in North America is typically available in two forms: Basic Rate Interface (BRI) consists of 2 B-channels at 64 kilobits per second (Kbps) and a D-channel at 16 Kbps; Primary Rate Interface (PRI) consists of 23 B-channels at 64 Kbps and a D-channel at 64 Kbps. An ISDN line must be installed by the phone company at both the calling site and the called site.
Integrated Windows authentication
A configuration setting that enables negotiation of authentication protocols in Internet Information Services (IIS).See also Internet Information Services (IIS).
internet
internet. Two or more network segments connected by routers. Another term for internetwork.
Internet. A worldwide network of computers. If you have access to the Internet, you can retrieve information from millions of sources, including schools, governments, businesses, and individuals.
Internet Control Message Protocol (ICMP)
A required maintenance protocol in the TCP/IP suite that reports errors and provides simple diagnostic capabilities. ICMP is used by the Ping tool to perform TCP/IP troubleshooting.See also protocol.See also Transmission Control Protocol/Internet Protocol (TCP/IP).
Internet Engineering Task Force (IETF)
An open community of network designers, operators, vendors, and researchers concerned with the evolution of Internet architecture and the smooth operation of the Internet. Technical work is performed by working groups organized by topic areas (such as routing, transport, and security) and through mailing lists. Internet standards are developed in IETF Requests for Comments (RFCs), which are a series of notes that discuss many aspects of computing and computer communication, focusing on networking protocols, programs, and concepts.
Internet Information Services (IIS)
Software services that support Web site creation, configuration, and management, along with other Internet functions. Internet Information Services include Network News Transfer Protocol (NNTP), File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP).See also File Transfer Protocol (FTP).
Internet Protocol (IP)
A routable protocol in the TCP/IP protocol suite that is responsible for IP addressing, routing, and the fragmentation and reassembly of IP packets.See also packet.See also Transmission Control Protocol/Internet Protocol (TCP/IP).
Internet Protocol security (IPSec)
A set of industry-standard, cryptography-based protection services and protocols. IPSec protects all protocols in the TCP/IP protocol suite except Address Resolution Protocol (ARP). For virtual private network (VPN) connections, IPSec is used in conjunction with Layer Two Tunneling Protocol (L2TP).See also Address Resolution Protocol (ARP).See also protocol.See also Transmission Control Protocol/Internet Protocol (TCP/IP).
Internet Server Application Programming Interface (ISAPI)
An application programming interface (API) that resides on a server computer for initiating software services tuned for Windows operating systems.In Microsoft Provisioning System, ISAPI resides on the Web server.See also application programming interface (API).
Internet service
One of any of a number of technologies for making information accessible to users over the Internet. Each Internet service is defined by a protocol, such as Hypertext Transfer Protocol (HTTP), and each is enabled using client/server applications, such as Web browsers and Web servers. Internet protocols are defined in the Request for Comments (RFC) documents that are published by the Internet Engineering Task Force (IETF).
Internet service provider (ISP)
A company that provides individuals or companies access to the Internet and the World Wide Web. An ISP provides a telephone number, a user name, a password, and other connection information so users can connect their computers to the ISP's computers. An ISP typically charges a monthly or hourly connection fee.
intranet
A network within an organization that uses Internet technologies and protocols, but is available only to certain people, such as employees of a company. Also called a private network.
See also internet.
IP
See Internet Protocol (IP).
IP address
For Internet Protocol version 4 (IPv4), a 32-bit address used to identify an interface on a node on an IPv4 internetwork. Each interface on the IP internetwork must be assigned a unique IPv4 address, which is made up of the network ID, plus a unique host ID. This address is typically represented with the decimal value of each octet separated by a period (for example, 192.168.7.27). You can configure the IP address statically or dynamically by using Dynamic Host Configuration Protocol (DHCP).For Internet Protocol version 6 (IPv6), an identifier that is assigned at the IPv6 layer to an interface or set of interfaces and that can be used as the source or destination of IPv6 packets.See also Dynamic Host Configuration Protocol (DHCP).See also node.See also octet.
IPSec
See Internet Protocol security (IPSec).
ISAPI
See Internet Server Application Programming Interface (ISAPI).
ISDN
See Integrated Services Digital Network (ISDN).
ISP
See Internet service provider (ISP).
