Cisco Cisco Web Security Appliance S380 사용자 가이드
22-31
AsyncOS 9.1 for Cisco Web Security Appliances User Guide
Chapter 22 Perform System Administration Tasks
AsyncOS for Web Upgrades and Updates
Figure 22-1
Upgrading from a Local Server
Hardware and Software Requirements for Local Upgrade Servers
For downloading AsyncOS upgrade files, you must have a system in your internal network that has a
web browser and Internet access to the Cisco update servers.
web browser and Internet access to the Cisco update servers.
Note
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.
using the DNS name and not a specific IP address.
For hosting AsyncOS upgrade files, a server on the internal network must have a web server, such as
Microsoft IIS (Internet Information Services) or the Apache open source server, which has the following
features:
Microsoft IIS (Internet Information Services) or the Apache open source server, which has the following
features:
•
Supports the display of directory or filenames in excess of 24 characters.
•
Has directory browsing enabled.
•
Is configured for anonymous (no authentication) or Basic (“simple”) authentication.
•
Contains at least 350MB of free disk space for each AsyncOS upgrade image.
Configuring Upgrades from a Local Server
Note
Cisco recommends changing the update and upgrade settings to use the Cisco update servers (using
dynamic or static addresses) after the upgrade is complete to ensure the security service components
continue to update automatically.
dynamic or static addresses) after the upgrade is complete to ensure the security service components
continue to update automatically.
Step 1
Configure a local server to retrieve and serve the upgrade files.
Step 2
Download the upgrade zip file.