Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
OL-25136-01
Chapter 15      System Administration
The Edit Update Settings page is displayed.
Step 2
Choose whether to download the AsyncOS upgrade image from the Cisco IronPort update servers or a 
local server. 
If you choose a local server, enter the base URL for the local server hosting the AsyncOS upgrade 
image. If the server requires authentication, you can also enter a valid user name and password.
Note
When you specify a local server for AsyncOS upgrades, the local server does not automatically 
receive updated McAfee Anti-Virus definitions, so the appliances in your network eventually 
become out of date. Change the settings back to use the Cisco IronPort update servers after the 
upgrade so the McAfee Anti-Virus definitions update automatically again.
Step 3
If you choose to download the AsyncOS upgrade image from a local server, select the local server as the 
source for the list of available updates (the manifest XML file). Enter the full URL for the manifest, 
including the file name, and the HTTP port number. If the server requires authentication, you can also 
enter a valid user name and password.
Step 4
Select the interface to use for the upgrade.
Step 5
Enter HTTP proxy server or HTTPS proxy server information if desired.
Step 6
Submit and commit changes.
Configuring Upgrade Settings from the CLI
To tell your appliances where to retrieve the AsyncOS upgrade (local or from Cisco IronPort’s servers), 
run the 
updateconfig 
command. To install an upgrade, run the 
upgrade
 command.
The updateconfig Command
The 
updateconfig
 command is used to tell your Cisco IronPort appliance where to look for service 
updates, including AsyncOS upgrades. By default, when you type the 
upgrade
 command, the appliance 
will contact Cisco IronPort’s upgrade servers for the latest update. For remote upgrades, issue the 
updateconfig
 command and configure the appliance to use a local update server (the local server 
configured above).
Note
You can use the 
ping
 command to ensure that the appliance can contact the local server. You can also 
use the 
telnet
 command to telnet to port 80 of the local server to ensure the local server is listening on 
that port.
AsyncOS Reversion
AsyncOS includes the ability to revert the AsyncOS operating system to a previous qualified build for 
emergency uses. 
Note
After upgrading to AsyncOS 7.0, you cannot revert to a version of AsyncOS earlier than 6.5.