For communication with Symantec Endpoint Protection clients over the network, by default Shared Insight Cache uses no authentication and no SSL. If you change Shared Insight Cache settings to Basic authentication with SSL or Basic authentication with no SSL, you must specify a user name and password that can access Shared Insight Cache.
To enable the use of a network-based Shared Insight Cache
In the Symantec Endpoint Protection Manager console, open the appropriate Virus and Spyware Protection policy and click Miscellaneous.
On the Shared Insight Cache tab, check Shared Insight Cache using Network.
Click Require SSL if you enabled SSL authentication in the configuration file.
In the Hostname box, type the host name of the host on which you installed Shared Insight Cache.
In the Port box, type the port number of Shared Insight Cache.
Optionally, if you configured authentication for Shared Insight Cache: