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What is Classes

Chapter 12
Encyclopedia of Internet Technologies and Applications
A way of slicing up and mapping out the complex environment into discrete set-like regions that can then be referred to by a symbol or name. They are formally constraints on the degrees of freedom available in the system parameter space. They are an integral part of specifying rules. They describe where something is to be constrained. Cfengine classes are not to be thought of in an object-oriented sense.
Published in Chapter:
Cfengine Configuration Management Agent
Mark Burgess (Oslo University College, Norway)
Copyright: © 2008 |Pages: 7
DOI: 10.4018/978-1-59140-993-9.ch012
Abstract
Cfengine is a policy-based configuration management system (Burgess 1995). Its pri-mary function is to provide automated configuration and maintenance of computers, from a policy specification.The cfengine project was started in 1993 as a reaction to the complexity and non-portability of shell scripting for Unix configuration management, and continuestoday. The aim was to absorb frequently used coding paradigms into a declarative, domain-specific language that would offer self-documenting configuration. Cfengine is estimated to run on millions of Unix, MacOSX and Windows computers all around the world. It is used in both large and small companies, as well as inmany universities and governmental institutions. Sites as large as 11,000 machines are reported, while sites of several thousand hosts running under cfengine are common.Cfengine falls into a class of approaches to system administration which is called policy-based configuration management (Sloman and Moffet 1993).
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