RE: Prevent certain users logging on during specific hours
- From: John Hallas <John.Hallas@xxxxxxxxxxxxxxxxxx>
- To: 'Andy Gmail' <andrew.kerber@xxxxxxxxx>
- Date: Thu, 24 Apr 2014 11:43:32 +0100
Nice idea, might be worth trying
TX
John
From: Andy Gmail [mailto:andrew.kerber@xxxxxxxxx]
Sent: 23 April 2014 13:57
To: John Hallas
Cc: oracle-l@xxxxxxxxxxxxx
Subject: Re: Prevent certain users logging on during specific hours
If you have control of their tns entry, you could define a service and start
and stop it as necessary in cron/scheduler.
Sent from my iPhone
On Apr 23, 2014, at 1:42 AM, John Hallas
<John.Hallas@xxxxxxxxxxxxxxxxxx<mailto:John.Hallas@xxxxxxxxxxxxxxxxxx>> wrote:
We have a requirement to prevent database logons by specific users (who can be
identified because they have a particular role) during certain times and I am
thinking of options and looking for any other thoughts on the best approach.
These are some of my thoughts
Resource manager - put the users into a resource group and schedule that group
to limit access appropriately – I have not tested this to see if it is possible
but if you can give it zero CPU quota it might be possible – does seem a lot of
effort though and my experience of RM is that it does need a lot of
tweaking/maintenance
Logon trigger - simple to implement - just needs a bit of work around
matching current time with allowed hours - but it will run against every login
and that is a big overhead on a busy system
OEM job (or dbms scheduler) to revoke create session from role – thinking about
it I think the scheduler job which is local on the database is safer. It would
need to do some form of ‘alter user revoke role’ command but that should all
work. The user does not get a good message back though which is a bit of a
problem with 2 of the solutions but the login trigger could have a message
output to the user
Any other suggestions please
Thanks John
www.jhdba.wordpress.com<http://www.jhdba.wordpress.com>
DBA Team Leader
Wm Morrison Supermarkets PLC
Tel 0845 611 4589 Mob: 07876 790540
E-mail: john.hallas@xxxxxxxxxxxxxxxxxx<mailto:john.hallas@xxxxxxxxxxxxxxxxxx>
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