(sē-nām) Short for canonical name, also referred to as a CNAME record, a record in a DNS database that indicates the true, or canonical, host name of a computer that its aliases are associated with. A computer hosting a Web site must have an IP address in order to be connected to the World Wide Web. The DNS resolves the computer��s domain name to its IP address, but sometimes more than one domain name resolves to the same IP address, and this is where the CNAME is useful. A machine can have an unlimited number of CNAME aliases, but a separate CNAME record must be in the database for each alias.
Usage Note: While CNAME is short for canonical name, use of the abbreviated term implies that one is referring to the canonical name record, not simply the canonical name.
- Command key
Macintosh computers have a special command key marked by a four-leaf clover or an apple. The Command key is similar to a PC’s Alt key — you hold it down while pressing another key to execute some operation. Typically, command-key combinations are shorthands for menu choices. For example, on the desktop, pressing the Command key […]
- Commerce Services Provider
Commerce Services Providers, or CSPs supply businesses with the tools and services they need to buy and sell products and services over the Internet and manage their online enterprises. CSPs provide service in areas such as: hardware/software design risk management payments brand recognition distribution control taxes Web site development and hosting Web site performance monitoring […]
- Common Intermediate Format
(n.) A video format used in videoconferencing systems that easily supports both NTSC and PAL signals. CIF is part of the ITU H.261 videoconferencing standard. It specifies a data rate of 30 frames per second (fps), with each frame containing 288 lines and 352 pixels per line. A related standard, QCIF (Quarter CIF), transfers one […]
- Common Language Infrastructure
Created by Microsoft as the foundation of its .NET technology, the Common Language Infrastructure (CLI) is an ECMA standard (ECMA-335) that allows applications to be written in a variety of high-level programming languages and executed in different system environments. Programming languages that conform to the CLI have access to the same base class library and […]
- Common UNIX Printing System
See under CUPS.