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2. Configuring Systems with CFEngine

Chapter 2. Configuring Systems with CFEngine

The beauty of CFEngine is that we can execute tasks on multiple systems seamlessly. In the previous chapter we saw how to write CFEngine promises; in this chapter we will see how to distribute those promises on multiple systems so that the remote systems may change their state as per the promises.

In this chapter we shall learn about:

  • The CFEngine architecture
  • Installing software
  • Configuring users and groups
  • Configuring services

As we already know, CFEngine works on the theory of promises. The promises need to be distributed to multiple systems so that the systems may change their state accordingly. Unlike conventional tools, CFEngine works on the principle of "voluntary cooperation". Rather than "pushing" the promises on remote systems CFEngine expects the remote systems to "pull" the changes from the CFEngine file server and execute the promises at their will. CFEngine, by design, cannot force its will onto other systems. At best, it can trigger a signal to remote systems and ask them to collect the changed file, at their will.


  

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