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Determining your server's role
While at this point your goal is most likely to set up an Ubuntu Server installation 
for the purposes of following along with the examples contained within this book, 
it's also important to understand how a typical server rollout is performed in 
the real world. Every server must have a purpose, or 
role
. This role could be that 
of a database server, web server, file server, and so on. In a nutshell, the role is 
the value the server adds to you or your organization. Sometimes, servers may 
be implemented solely for the purpose of testing experimental code. And this is 
important too—having a test environment is a very common (and worthwhile) 
practice.

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Chapter 1