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This helps prevent unauthorized use of the software; for example, a user attempting to extend the end date of a trial license. Note that any clock discrepancy of less than 24 hours will not be detected as tampering. For example, a user can change the clock to reflect a different time zone without causing an error.
Whether a A system clock check is done using the local file system by default depends , depending on the license type of license, as follows:as shown in the following table. You may change the system clock check to check time on a remote Network Time Protocol (NTP) time server instead of the local file system, or you can disable system clock check. For more information, see FEATURE settings.
License Type | Default System Clock Check Behavior |
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Local | Check system clock only when end date is set. Otherwise, do not check system clock. |
Network | Do not check system clock. |
Trial | Check system clock. |
Grace | Do not check system clock. |
Borrow | Do not check system clock. |
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