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Cisco Cisco Web Security Appliance S690 User Guide

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21-27
Cisco AsyncOS 8.0.6 for Web User Guide
 
Chapter 21      Perform System Administration Tasks
  AsyncOS for Web Upgrades and Updates
Related Topics
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Upgrading and Updating AsyncOS and Security Service Components
Upgrading AsyncOS for Web
Before You Begin
•
Save the appliance configuration file (see 
).
Step 1
Choose System Administration > System Upgrade.
Step 2
Click Available Upgrades.
Step 3
Select an upgrade from the list of available upgrades, and click Begin Upgrade to start the upgrade 
process. Answer the questions as they appear.
Step 4
When the upgrade is complete, click Reboot Now to reboot the Web Security appliance.
Related Topics
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Automatic and Manual Update and Upgrade Queries
AsyncOS periodically queries the update servers for new updates to all security service components, but 
not for new AsyncOS upgrades. To upgrade AsyncOS, you must manually prompt AsyncOS to query for 
available upgrades. You can also manually prompt AsyncOS to query for available security service 
updates. For more information, see 
When AsyncOS queries an update server for an update or upgrade, it performs the following steps:
1.
Contacts the update server.
Cisco allows the following sources for update servers:
–
Cisco update servers. For more information, see 
–
Local server. For more information, see 
2.
Receives an XML file that lists the available updates or AsyncOS upgrade versions. This XML file 
is known as the “manifest.”
3.
Downloads the update or upgrade image files.
Manually Updating Security Service Components
By default, each security service component periodically receives updates to its database tables from the 
Cisco update servers. However, you can manually update the database tables.