Cisco Cisco Web Security Appliance S660 Guida Utente

Submit and commit your changes.

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AsyncOS for Web supports the ability to revert the AsyncOS for Web operating system to a previous 
qualified build for emergency uses. 

You cannot revert to a version of AsyncOS for Web earlier than version 7.5. 

If you revert from AsyncOS 8.5 to AsyncOS 8.0, there is no 180-day grace period during which the 
appliance processes web transactions without security features. License expiration dates are unaffected. 

Effective in version 7.5, when you upgrade to a later version, the upgrade process automatically saves 
the current system configuration to a file on the Web Security appliance. (However, Cisco recommends 
manually saving the configuration file to a local machine as a backup.) This allows AsyncOS for Web to 
load the configuration file associated with the earlier release after reverting to the earlier version. 
However, when it performs a reversion, it uses the current network settings for the management 
interface.

Update Servers (images)

Whether to download upgrade and update images from the Cisco update 
servers or a local web server. 

When you choose a local update server, enter the base URL and port 
number for the server. If you leave the port field blank, AsyncOS uses port 
80. If the server requires authentication, you can also enter a valid user 
name and password.

Routing  Table

Choose which network interface’s routing table to use when contacting the 
update servers. 

Proxy Server (optional)

If an upstream proxy server exists and requires authentication, enter the 
server information and user name and password here.