Installation manual

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4.1.7.4 Extensions
An extension is part of the file name delimited by a period. The extension defines the type and content of the file.
This section of the ThreatSense parameter setup lets you define the types of files to scan.
By default, all files are scanned regardless of their extension. Any extension can be added to the list of files excluded
from scanning. If the Scan all files option is deselected, the list changes to show all currently scanned file
extensions. Using the Add and Remove buttons, you can enable or prohibit scanning of desired extensions.
To enable scanning of files with no extension, select the Scan extensionless files option.
Excluding files from scanning is sometimes necessary if scanning certain file types prevents the program which is
using the extensions from running properly. For example, it may be advisable to exclude the .edb, .eml and .tmp
extensions when using Microsoft Exchange servers.
4.1.7.5 Limits
The Limits section allows you to specify the maximum size of objects and levels of nested archives to be scanned:
Maximum object size: – Defines the maximum size of objects to be scanned. The given antivirus module will then
scan only objects smaller than the size specified. We do not recommend changing the default value, as there is
usually no reason to modify it. This option should only be changed by advanced users who have specific reasons for
excluding larger objects from scanning.
Maximum scan time for object (sec.): – Defines the maximum time value for scanning an object. If a user-defined
value has been entered here, the antivirus module will stop scanning an object when that time has elapsed,
regardless of whether the scan has finished.
Archive nesting level: –Specifies the maximum depth of archive scanning. We do not recommend changing the
default value of 10; under normal circumstances, there should be no reason to modify it. If scanning is prematurely
terminated due to the number of nested archives, the archive will remain unchecked.
Maximum size of file in archive: – This option allows you to specify the maximum file size for files contained in
archives (when they are extracted) that are to be scanned. If this causes scanning an archive to be prematurely
terminated, the archive will remain unchecked.