Cisco Cisco Web Security Appliance S170 사용자 가이드
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Cisco IronPort AsyncOS 7.7 for Web User Guide
Chapter 26 System Administration
Configuring Upgrade and Service Update Settings
Upgrading AsyncOS for Web from the CLI
Issue the
upgrade
command from the CLI to show a list of available upgrades. Select the desired upgrade
from the list to install it. You may be asked to confirm messages or read and agree to license agreements,
etc.
etc.
Differences from Traditional Upgrading Method
Please note these differences when upgrading AsyncOS from a local server as opposed to the traditional
method:
method:
1.
The upgrading installs immediately while downloading.
2.
A banner displays for 10 seconds at the beginning of the upgrade process. While this banner is
displayed, you have the option to type Control+C to exit the upgrade process before downloading
starts.
displayed, you have the option to type Control+C to exit the upgrade process before downloading
starts.
Configuring Upgrade and Service Update Settings
You can configure how the Web Security appliance downloads security services updates, such as Web
Reputation Filters and AsyncOS for Web upgrades. For example, you can choose which network
interface to use when downloading the files, configure the update interval. or disable automatic updates.
Reputation Filters and AsyncOS for Web upgrades. For example, you can choose which network
interface to use when downloading the files, configure the update interval. or disable automatic updates.
AsyncOS periodically queries the update servers for new updates to all security service components, but
not for new AsyncOS upgrades. To upgrade AsyncOS, you must manually prompt AsyncOS to query for
available upgrades. You can also manually prompt AsyncOS to query for available security service
updates. For more information, see
not for new AsyncOS upgrades. To upgrade AsyncOS, you must manually prompt AsyncOS to query for
available upgrades. You can also manually prompt AsyncOS to query for available security service
updates. For more information, see
.
When AsyncOS queries an update server for an update or upgrade, it performs the following steps:
1.
Contacts the update server.
Cisco allows the following sources for update servers:
–
Cisco IronPort update servers. For more information, see
–
Local server. For more information, see
2.
Receives an XML file that lists the available updates or AsyncOS upgrade versions. This XML file
is known as the “manifest.”
is known as the “manifest.”
3.
Downloads the update or upgrade image files.
By default, AsyncOS contacts the Cisco IronPort update servers for both update and upgrade images and
the manifest XML file. However, you can choose from where to download the upgrade and update
images and the manifest file. You might want to specify a local update server for the images or manifest
file for any of the following reasons:
the manifest XML file. However, you can choose from where to download the upgrade and update
images and the manifest file. You might want to specify a local update server for the images or manifest
file for any of the following reasons:
•
You have multiple appliances to upgrade simultaneously. If your organization has multiple Web
Security appliances that need to upgrade, you can download the upgrade image to a web server
inside your network and serve it to all appliances in your network.
Security appliances that need to upgrade, you can download the upgrade image to a web server
inside your network and serve it to all appliances in your network.