Cisco Cisco Web Security Appliance S380 User Guide
21-30
Cisco AsyncOS 8.0.6 for Web User Guide
Chapter 21 Perform System Administration Tasks
AsyncOS for Web Upgrades and Updates
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.
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:
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 Upgrades from a Local Server
Step 1
Configure a local server to retrieve and serve the upgrade files.
Step 2
Download the upgrade zip file.
Using a browser on the local server, go to
http://updates.ironport.com/fetch_manifest.html
to download a zip file of an upgrade image. To
download the image, enter your serial number (for a physical appliance) or VLN (for a virtual appliance)
and the version number of the appliance. You will then be presented with a list of available upgrades.
Click on the upgrade version that you want to download.
and the version number of the appliance. You will then be presented with a list of available upgrades.
Click on the upgrade version that you want to download.
Step 3
Unzip the zip file in the root directory on the local server while keeping the directory structure intact.
Step 4
Configure the appliance to use the local server using the System Administration > Upgrade and Update
Settings page or the
Settings page or the
updateconfig
command.
Step 5
On the System Administration > System Upgrade page, click Available Upgrades or run the
upgrade
command.
Note
Cisco recommends changing the update and upgrade settings to use the Cisco update servers (using
dynamic or static addresses) after the upgrade is complete to ensure the security service components
continue to update automatically.
dynamic or static addresses) after the upgrade is complete to ensure the security service components
continue to update automatically.
Differences Between Local and Remote Upgrading Methods
The following differences apply when upgrading AsyncOS from a local server rather than from a Cisco
update server:
update server:
1.
The upgrading installs immediately while downloading.
2.
A banner displays for 10 seconds at the beginning of the upgrade process. While this banner is
displayed, you have the option to type Control+C to exit the upgrade process before downloading
starts.
displayed, you have the option to type Control+C to exit the upgrade process before downloading
starts.