Cisco Cisco Email Security Appliance C170 사용자 가이드

Choose whether to download service update and 
IronPort AsyncOS upgrade images from the IronPort 
update servers or a local web server.

The default is the IronPort update servers. In 
addition to AsyncOS upgrades, these servers are 
used to obtain update images for Sophos and 
McAfee Anti-Virus definitions, IronPort Anti-Spam 
and IronPort Intelligent Multi-Scan rules, Virus 
Outbreak Filter rules, feature key updates, and PXE 
Engine updates.

You might want to choose a local web server under 
either of the following circumstances:

You want to download the upgrade and update 
images from IronPort, but you need to enter a 
static address provided by IronPort Customer 
Support.

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 (or the static address if you used that) so 
that security components continue to update 
automatically.

When you choose a local update server, enter the 
base URL and port number for the servers used to 
download the upgrades and updates. If the server 
requires authentication, you can also enter a valid 
user name and password.

IronPort Intelligent Multi-Scan requires a 
second local server to download updates for 
third-party anti-spam rules.