Each version of an application has a unique checksum. The firewall can use this checksum to decide whether an application is allowed or not.
By default, the firewall checks the checksum of each application that runs. If the checksum is unknown or has changed, the firewall blocks it or (in interactive mode) asks the user what to do.
The firewall also sends an alert to the management console, if one is being used, the first time a new or modified application is detected.
To add a checksum to the list of allowed checksums:
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