Cisco Cisco Web Security Appliance S670 User Guide

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AsyncOS 8.5 for Cisco Web Security Appliances User Guide

Chapter 21 Perform System Administration Tasks

AsyncOS for Web Upgrades and Updates

When AsyncOS queries an update server for an update or upgrade, it performs the following steps:

Contacts the update server.

Cisco allows the following sources for update servers:

–

Cisco update servers. For more information, see

NoteLocal update servers do not

automatically receive security service updates, only AsyncOS upgrades. After using a local
update server for upgrading AsyncOS, change the update and upgrade settings back to use the
Cisco update servers so the security services update automatically again., page 21-29

–

Local server. For more information, see

Upgrading from a Local Server, page 21-29

Receives an XML file that lists the available updates or AsyncOS upgrade versions. This XML file
is known as the “manifest.”

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.

Note

Some updates are available on an on-demand basis from the GUI pages related to the feature.

Step 1

Choose System Administration > Upgrade and Update Settings.

Step 2

Click Edit Update Settings.

Step 3

Specify the location of the update files.

Step 4

Initiate the update using the Update Now function key on the component page located on the Security
Services tab. For example, Security Services > Web Reputation Filters page.

Note

Updates that are in-progress cannot be interrupted. All in-progress updates must complete before new
changes can be applied.

Tip

View a record of update activity in the updater log file. Subscribe to the updater log file on the System
Administration > Log Subscriptions page.

Local And Remote Update Servers

By default, AsyncOS contacts the Cisco update servers for both update and upgrade images and the
manifest XML file. However, you can choose from where to download the upgrade and update images
and the manifest file. Using a local update server for the images or manifest file for any of the following
reasons: