Cisco Cisco Web Security Appliance S170 Guia Do Utilizador

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

Choose System Administration > Upgrade and Update Settings.

Click Edit Update Settings.

Specify the location of the update files.

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.

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

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

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:

You have multiple appliances to upgrade simultaneously. You can download the upgrade image 
to a web server inside your network and serve it to all appliances in your network.

Your firewall settings require static IP addresses for the Cisco update servers. The Cisco update 
servers use dynamic IP addresses. If you have strict firewall policies, you may need to configure a 
static location for updates and AsyncOS upgrades. For more information, see 

.

Local 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.

A Web Security appliance can connect directly to Cisco update servers and download upgrade images 
and security service updates. Each appliance downloads the updates and upgrade images separately.