Red Hat NETWORK 3.2 - PROVISIONING, Справочное руководство

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Chapter 4. Red Hat Network Website 53
To set individual modes, issue this command (repeatedly, as root), appending the mode name to
the end:
touch /etc/sysconfig/rhn/allowed-actions/configfiles/ mode
To grant full configuration management access, issue this command:
touch /etc/sysconfig/rhn/allowed-actions/configfiles/all
Your system should now be ready for config management through RHN. The central configura-
tion repository is covered more extensively in Section 4.6.6 Manage Config Channels . Command
line options also exist for many of these functions. Refer to Appendix A Command Line Config
Management Tools for instructions. Here are the system’s
Configuration
subtabs:
•
Managed Files — List all configuration files currently associated with the system.
•
Verify
— Validate the configuration files installed on the system by comparing them to ver-
sions stored in RHN’s central configuration manager. Select the files to be verified and click
Verify
.
•
Config Channels — Set the subscription and rank of configuration channels that may be as-
sociated with the system. Enter numbers in the
Rank
fields to establish the order in which
channels are used. Channels with no numeric value are not associated with the system. Your
local configuration channel will always override all other channels for this system and there-
fore cannot have its rank adjusted from 1. All other channels are created in the
Manage Con-
fig Channels
interface within the
Channels
category. Refer to Section 4.6.6 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, click the add, edit, or remove files link within the description to access the system’s
Config Channel Files
page. If a file exists, click its name to go to the
Configuration File
Details
page. Refer to Section 4.6.6.6 Configuration File Details for instructions. To replicate
the file within a config channel, select its checkbox, click the
Copy to Config Channel
button,
and select the destination channel. To remove a file, select it and click
Delete Selected Files
.
•
Sandbox — Manipulate configuration files without deploying them. This sandbox provides
you with an area to experiment with files without affecting systems. To add files, click the
import new files link, select an option for their addition from the dropdown menu, and click
Go
. Ensure you have the latest
rhncfg*
packages. The rest of the functions work like those
on the Local Overrides subtab.
•
Groups
— Lists the system’s associated groups and enables you to change these associations. To
modify the system’s groups, select or unselect their checkboxes and click the Update Membership
button. Click on a group’s name to go to its
System Group Details
page. Refer to Section 4.4.3.3
System Group Details for more information.
•
Snapshots
— Provides snapshots enabling rollback of the system’s package profile, configuration
files, and RHN settings. These snapshots are captured whenever an action takes place on the system.
•
Snapshots
— The default display of the
Snapshots
tab lists the reason, dates, and times for
snapshots taken. To revert to a previous configuration, click the snapshot taken at the desired
date and time and review the potential changes on the provided subtabs. When satisfied with the
reversion, return to the
Rollback
subtab and click the
Rollback to Snapshot
button. To see the
list again, click Return to snapshot list .
•
Snapshot Tags
— Provides a means to add meaningful descriptions to your system snapshots.
This can be used to indicate milestones, such as a known working configuration or a successful
upgrade. To tag the most recent snapshot, click
create new system tag
, enter a descriptive term
in the Tag name field, and click the Tag Current Snapshot button. You may then revert using
this tag directly by clicking its name in the Snapshot Tags list.