Red Hat NETWORK 4.0 -, Справочное руководство

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86 Chapter 6. Red Hat Network Website
6.4.2.8.4.2. System Details
⇒
Channels
⇒
Configuration —
Assists in managing the configuration of the system. This section is available to normal
users with access to systems that have configuration management enabled. Like software
channels, configuration channels store files to be installed on systems. While software
updates are provided by RHN, configuration files are managed solely by you. Also unlike
software packages, various versions of configuration files may prove useful to a system at
any given time. Remember, only the latest version can be deployed.
To manage the configuration of a system, it must have the latest
rhncfg*
packages
installed. Refer to Section 6.6.6.1 Preparing Systems for Config Management for
instructions on enabling and disabling scheduled actions for a system.
Here are the options available within the system’s
Configuration tab, each of which results
in a separate subtab:
•
Managed Files — List all configuration files currently associated with the system. The
Overrides column identifies the config file from which channel will apply if the system is
unsubscribed from the config channel that provides the file now. For instance, if a system
has ’/etc/foo’ from channel ’bar’ and ’/etc/foo’ from channel ’baz’ is in the Overrides
column, then unsubscribing from channel ’bar’ will mean that the file from channel
’baz’ will be applicable. Also, if nothing is in the ’Overrides’ column for a given file
path, then unsubscribing from the channel providing the file will mean that the file is no
longer managed (though it will not remove the file from the system).
•
Diff — Validate the configuration files installed on the system by comparing them to
versions stored in RHN’s central configuration manager. Select the files to be diffed and
click Analyze Differences .
•
Config Channels — Set the subscription and rank of configuration channels that may
be associated with the system, lowest first. Enter numbers in the Rank fields to establish
the order in which channels are used. Channels with no numeric value are not associ-
ated with the system. This system’s local configuration channel will always override all
other channels for this system and therefore cannot have its rank adjusted from 1. All
other channels are created in the Manage Config Channels interface within the Chan-
nels category. Refer to Section 6.6.6 Manage Config Channels — for instructions.
When satisfied, click Update .
•
Local Overrides — View and manage the default configuration files for the system.
If no files exist, you may use the add files , upload files , and add directories
links within the page description to associate files with this system. These tabs
correspond to those within the Configuration Channel Details page, affecting your
entire organization and available only to Configuration Administrators. Refer to
Section 6.6.6.5
Configuration Channel Details — for instructions.