Why enterprise management tools
In this chapter we aim to show how useful an enterprise management tool for 
Linux can be if the number of client systems to manage becomes large. Just like 
you need to automate certain tasks when using other operating systems, it is 
also advantageous to do this when using Linux. The two major enterprise 
distributions, Novell/SuSE and Red Hat, both provide options for automating 
client management tasks. We describe their enterprise management tools in this 
appendix.
The tools are designed to manage thousands of clients and hundreds of servers. 
They can be called enterprise tools because all the Linux systems in an 
enterprise can be managed by these systems.
Since both tools have a similar but different approach to the problem of 
managing many systems, we start each  impressions  section on the tool with a 
description of the architecture behind the tool. We also introduce the terms and 
concepts used in each tool. Since both tools are themselves based on complex 
application architectures, we do not go into full detail. This would be a topic for 
another book. Therefore we only give a first impression glance at the tools that 
can be used to manage the Linux client in the enterprise. This should give you a 
good idea of the power of each of the tools.
Although both tools have a Web interface and a command line interface, we 
concentrate on the Web based processes.
Satellite server and Red Hat Network (RHN)
This section describes the Satellite server and its relation to the Red Hat 
Network. This is the preferred architecture for enterprise customers running a 
large number of Red Hat Enterprise installations within their organization.
In this section we look at:
Architecture   Of RHN in general and the Satellite model in particular
Concepts   The terms used in RHN and Satellite like channel, entitlement, 
activation key, and others
First impressions   A first look at the satellite server and how it can be used to 
manage Linux clients within the organization
162 
Linux Client Migration Cookbook   A Practical Planning and Implementation Guide for Migrating to Desktop






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