How exclusions within NetApp Filer and SAV for NAS 5.x work together

Article:TECH93126  |  Created: 2009-01-26  |  Updated: 2009-01-26  |  Article URL http://www.symantec.com/docs/TECH93126
Article Type
Technical Solution


Issue



You seek to understand how the inclusion and exclusion lists at the NetApp Filer work together with the exclusion list within Scan Engine 5.x.


Solution



If a file has a filename ending in an extension which appears on the inclusion list, vscan will request a scan from one of the Scan Engines which has registered with it. However, if the extension of the filename for that file also appears on the exclusion list, vscan will not request a scan from one of the Scan Engines which has registered with it. Many administrators exclude files by extension at the NetApp Filer to conserve network bandwidth.

At the Symantec Scan Engine, Scan Engine performs true file typing before it applies exclusions by either file extension or MIME type. To do so, it must receive the entirety of the file, before it attempts to determine the file's true type.







Legacy ID



2009032614261054


Article URL http://www.symantec.com/docs/TECH93126


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