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6.7. Configuration

This tab is the portal to managing your configuration channels and files, whether they are centrally managed or limited to a single system. You must be a Configuration Administrator or an Satellite Administrator to see the Configuration tab. In addition, you must have at least one Provisioning entitlement, or the tab does not appear.
Centrally-managed files are those that are available to multiple systems; changes to a single file in a central configuration channel can affect many systems. In addition, there are local configuration channels. Each system with a Provisioning entitlement has a local configuration channel (also referred to as an override channel) and a Sandbox channel. Both central and local configuration management are discussed in detail later in this chapter.

6.7.1. Preparing Systems for Config Management

For a system to have its configuration managed through RHN, it must have the appropriate tools and config-enable file installed. These tools may already be installed on your system, especially if you kickstarted the system with configuration management functionality. If not, they can be found within the RHN Tools child channel for your distribution. Download and install the latest rhncfg* packages. They are:
  • rhncfg — The base libraries and functions needed by all rhncfg-* packages.
  • rhncfg-actions — The code required to run configuration actions scheduled via the RHN website.
  • rhncfg-client — A command line interface to the client features of the RHN Configuration Management system.
  • rhncfg-management — A command line interface used to manage RHN configuration.
Next, you must enable your system to schedule configuration actions. This is done using the rhn-actions-control command on the client system. This command is included in the rhncfg-actions RPM. The RHN Actions Control (rhn-actions-control) enables or disables specific modes of allowable actions. Refer to Section A.1, “Red Hat Network Actions Control” for instructions.