Appendix E - System Clock - Secure Computing SG300 User Manual

Units with a hardware clock
When the time and date is set through the management console, or retrieved from an
NTP server, the SnapGear unit's hardware clock is automatically updated. The hardware
clock uses a battery to allow the current time and date to be maintained across reboots,
and after the SnapGear unit has been powered down for longer periods of time.
Units without a hardware clock
Note
SG300 only.
As these units have no battery-powered hardware clock, the current date and time is not
kept across reboots, and particularly will not be accurate after the SnapGear unit has
been powered for longer periods of time.
As the unit boots up, the last modification date and time value is read for each
configuration file (/etc/config/*) in the flash config filesystem. The system clock is set to
the latest of these values.
Appendix E – System Clock
Appendix E – System Clock
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