Barracuda Networks Load Balancer, Руководство администратора

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38 Barracuda Load Balancer Administrator’s Guide
Maintaining the Barracuda Load Balancer
This section describes how to manage and maintain your Barracuda Load Balancer using the Web
administration interface. This section covers the following topics:
Backing up and Restoring Your System Configuration ..................... 38
Updating the Firmware of Your Barracuda Load Balancer.............. 38
Updating the Intrusion Prevention Rules Using Energize Updates .. 39
Replacing a Failed System ................................................................ 39
Reloading, Restarting, and Shutting Down the System ..................... 39
Using the Built-in Troubleshooting Tools .......................................... 40
Rebooting the System in Recovery Mode........................................... 40
Backing up and Restoring Your System Configuration
The
Advanced > Backup
page lets you back up and restore the configuration of your Barracuda Load
Balancer. You should back up your system on a regular basis in case you need to restore this
information on a replacement Barracuda Load Balancer or in the event your current system data
becomes corrupt.
If you are restoring a backup file on a new Barracuda Load Balancer that is not configured, you need
to assign your new system an IP address and DNS information on the
Basic > IP Configuration
page.
Note the following about the backup file:
• Do not edit backup files. Any configuration changes you want to make need to be done through
the Web interface. The configuration backup file contains a checksum that prevents the file from
being uploaded to the system if any changes are made.
• You can safely view a backup file in Windows WordPad or Microsoft Word. You should avoid
viewing backup files in Windows Notepad because the file can become corrupted if you save the
file from this application.
• The following information is not included in the backup file:
• System password
• System IP information
• DNS information
Updating the Firmware of Your Barracuda Load Balancer
The
Advanced > Firmware Update
page allows you to manually update the firmware version of the
system or revert to a previous version. The only time you should revert back to an old firmware
version is if you recently downloaded a new version that is causing unexpected problems. In this case,
call Barracuda Networks Technical Support before reverting back to a previous firmware version.
If you have the latest firmware version already installed, the
Download Now
button will be disabled.
If you have two Barracuda Load Balancers configured in High Availability mode, update the
firmware on the backup Barracuda Load Balancer first. Then update the firmware on the primary
Barracuda Load Balancer. The backup Barracuda Load Balancer becomes operational when the
primary is rebooted, thus maintaining availability.