Cisco Cisco Email Security Appliance C170 사용자 가이드

How (from which URL) the system will receive anti-virus updates. The virus 
definitions are updated from a dynamic URL. If you have strict firewall 
policies, you may need to configure your Cisco IronPort appliance to obtain 
updates from a static URL. 

How frequently the system checks for new virus definitions. (You define the 
number of minutes between checks.)

You can optionally enable a proxy server for obtaining anti-virus updates. 

For more information about configuring these additional settings, see 

To enable Anti-Virus scanning if you have not previously enabled an anti-virus 
engine in the System Setup Wizard (see 

 for the GUI 

or the 

 for the CLI), complete the 

following steps:

Select Security Services > McAfee.

Or

Select Security Services > Sophos.

Click Enable. The license agreement page is displayed. 

Clicking Enable enables the feature globally for the appliance. However, 
you must later enable per-recipient settings in Mail Policies. 

After reading the agreement, scroll to the bottom of the page and click Accept to 
accept the agreement.

Click Edit Global Settings.

Choose a maximum virus scanning timeout value.

Configure a timeout value for the system to stop performing anti-virus scanning 
on a message. The default value is 60 seconds. 

Submit and commit your changes.