Cisco Cisco Email Security Appliance C170 Guida Utente

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 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, 
IronPort 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 

Automatic Updates

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

Choose which network interface to use when 
contacting the update servers for McAfee Anti-Virus 
definitions, PXE Engine updates and IronPort 
AsyncOS upgrades. The available proxy data 
interfaces are shown. By default, the appliance 
selects an interface to use.