It's possible to check who change the system time in OpenVMS?

[Ruth N. Perez]

Hello

I'm new in OpenVMS system. I want to know if exist a file that store who change the system time.


Thank You.

[Hoff]

The literal and direct answer is "yes"; the time-change mechanism can be enabled and monitored through standard OpenVMS security auditing. HELP SHOW and SET AUDIT, and ANALYZE/AUDIT. That audit might or might not be already enabled on your system, however.

The longer answer depends on why you are asking this question, and there can be many potential triggers. Please post the specific platform and OpenVMS version and some background information around the question -- why do I ask for that?

There have been bugs in the handling of time on OpenVMS that have led to "interesting" time values and time-changes, and there are cases where console-level time management can have unexpected though intended effects elsewhere in the system.

There can also be external tools used to manage the system time, such as those present in OpenVMS V7.3 and later, and enabled via AUTO_DLIGHT_SAV system parameter.

And then there is NTP and DECnet-Plus DECdts (DTSS), both of which can manage your time.

As for the literal question, use SHOW AUDIT to determine if the system time audit is presently already enabled. If not enabled and needed, enable the auditing of time changes with the SET AUDIT command, and in either case then use ANALYZE/AUDIT after the time-change event.

As for some related materials on time and timekeeping on OpenVMS, see the following:

http://64.223.189.234/taxonomy/term/57

Stephen Hoffman
HoffmanLabs LLC

[Dean McGorrill]

Hi Ruth,
this might do it..

$ set audit/enable=time/audit

Dean