Cisco Cisco Web Security Appliance S690 User Guide

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Chapter 26      System Administration
Configuring Upgrade and Service Update Settings
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Cisco IronPort AsyncOS 7.1 for Web User Guide
OL-23207-01
Note
Cisco recommends changing the update and upgrade settings to use the IronPort 
update servers (using dynamic or static addresses) after the upgrade is complete 
to ensure the security service components continue to update automatically.
Hardware and Software Requirements for Local Upgrade Servers
For downloading AsyncOS upgrade files, you must have a system in your internal 
network that has a web browser (see 
) and 
Internet access to the IronPort Systems update servers. 
Note
If you need to configure a firewall setting to allow HTTP access to this address, 
you must configure it using the DNS name and not a specific IP address.
For hosting AsyncOS upgrade files, a server on the internal network must have a 
web server, such as Microsoft IIS (Internet Information Services) or the Apache 
open source server, which has the following features:
Supports the display of directory or filenames in excess of 24 characters.
Has directory browsing enabled.
Is configured for anonymous (no authentication) or Basic (“simple”) 
authentication.
Contains at least 350MB of free disk space for each AsyncOS upgrade image.
Configuring the Update and Upgrade Settings from the Web 
Interface
To edit the AsyncOS update and upgrade settings:
Step 1
Navigate to the System Administration > Upgrade and Update Settings page, and 
click Edit Update Settings. The Edit Update Settings page is displayed.
 shows the options you can configure on the Edit Update 
Settings page.