Cisco Cisco Email Security Appliance C160 Mode D'Emploi

To set an update server for your Cisco IronPort appliance:

Choose whether to download the list of available updates (the manifest 
XML file) from the IronPort update servers or a local web server. The 
manifest XML file includes updates for different security components, such 
as McAfee Anti-Virus and the PXE Engine, as well as AsyncOS upgrades.

The default is the IronPort update servers. You might want to choose a local 
web server when you want to temporarily download an upgrade image 
stored on a local web server. After you download the image, Cisco 
recommends changing this setting back to the IronPort update servers so 
that security components continue to update automatically.

When you choose a local update server, enter the full path to the manifest 
XML file for the list including the file name and port number for the server. 
If you leave the port field blank, AsyncOS uses port 80. If the server 
requires authentication, you can also enter a valid user name and password.

For more information, see 

Enable automatic updates and the update interval (how often the appliance 
checks for updates) for Sophos and McAfee Anti-Virus definitions, IronPort 
Anti-Spam rules, IronPort Intelligent Multi-Scan rules, PXE Engine 
updates, Outbreak Filter rules, and time zone rules.

Choose which network interface to use when contacting the update servers 
for the listed security component updates and Cisco IronPort AsyncOS 
upgrades. The available proxy data interfaces are shown. By default, the 
appliance selects an interface to use.

An optional proxy server used for the services listed in the GUI.

Note that if you specify a proxy server, it will be used for ALL of these 
services. 

An optional proxy server using HTTPS. If you define the HTTPS proxy 
server, it will be used to update the services listed in the GUI.