Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
 
Chapter 34      System Administration
  Setting Up to Obtain Upgrades and Updates
Note
Cisco recommends using a local server only for AsyncOS upgrades. If you use a local update server for 
security update images, the local server does not automatically receive security updates from Cisco 
IronPort, so the appliances in your network may not always have the most current security services. 
Figure 34-2
Remote Update Method
Procedure 
Step 1
Configure a local server to retrieve and serve the upgrade files.
Step 2
Download the upgrade files.
Step 3
Configure the appliance to use the local server using either the Security Services > Service Updates page 
in the GUI or the 
updateconfig
 command in the CLI.
Step 4
Upgrade the appliance using either the System Administration > System Upgrade page or the 
upgrade
 
command in the CLI.
Hardware and Software Requirements for Upgrading and Updating from a Local 
Server
For downloading AsyncOS upgrade and update files, you must have a system in your internal network 
that has:
Internet access to the Cisco Systems update servers. 
A web browser (see 
Note
For this release, if you need to configure a firewall setting to allow HTTP access to this address, you 
must configure it using the DNS name and not a specific IP address. 
Your IronPort Appliances
Web Server with HTTP
access to Internet
IronPort Systems
Update Servers
HTTP connection to Internet through firewall
local HTTP connections
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