Руководство Пользователя для Cisco Cisco Email Security Appliance C170

System administration in general is handled primarily via the System Administration menu in the 
Graphical User Interface (GUI). Some system administration features are accessible only via the 
Command Line Interface (CLI). 

In addition, you may want to access the Cisco IronPort appliance’s system monitoring features via the 
Cisco IronPort Graphical User Interface (GUI), which is described in 

.

Several of the features or commands described in this section will affect, or be affected by routing 
precedence. Please see 

 for more information.

Upgrading AsyncOS uses the following two step process:

Configure the upgrade settings. You can configure settings that affect how the Email Security 
appliance downloads the upgrade information. For example, you can choose where to download the 
upgrade images from and more. For more information, see 

.

Upgrade AsyncOS. After you configure the upgrade settings, upgrade the version of AsyncOS on the 
appliance. For more information see 

 

and 

As a best practice, Cisco recommends preparing for an upgrade by taking the following steps: