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Chapter 29 - Maintaining The Router
Backup And Restore
The Backup And Restore system provides the following features:
• All configuration settings are saved in a configuration archive,
• Webmin configuration settings are saved in a Webmin configuration
archive,
• Archives can be used to “clone” routers, replicate a damaged resource or
unwind a change,
• Archives can be created manually (including user comments) or by the
Automatic nightly backup, which captures all changes over the previous 24
hours,
• The nightly backup archives can be automatically transferred via scp or ftp
to a designated server,
• The nightly backup archives are kept on the router for a configurable
number of days and then deleted. The most recently made archive is never
destroyed. Manually created archives are never destroyed.
• If you make a configuration change you later wish to reverse you can
restore a previously made archive completely. An archive difference tool
is provided, showing the difference between one archive and either another
archive or the current configuration. Changes in configuration can also be
detected and “unwound” by applying the previous state of a router on a file
by file basis.
• Archive filename is user definable and can include any of date/time, host
name and/or release version,
• Archives can be uploaded to the router and restored. The router prevents
the restoration of archives having other than current software version.
• A Configuration Rollback feature that allows users to safely make
modifications under a safety net.
• A factory defaults file is included.
Note the following caveats:
• Chassis specific items such as serial number, hardware inventory and
MAC addresses are not saved,
• Log and history files are not saved,
• Information stored in the root and user accounts are not saved.
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Figure 231: System Backup And Restore