How to log attempts to connect as a locked user account

Dear list,

I want to design poor man's auditing for one single case: My user
accounts are locked, and I want to log the connection attempts. But
since there is no BEFORE LOGON ON DATABASE trigger (for rather obvious
reasons).

(Background info: Decommissioning of a test database: I want to find
ancient jobs or autistic developers that don't complain, before dropping
the storage there.)

Is there any best practice for this? I'm using 9i, 10g and 11g.

Thanks for any response
Martin Klier
-- 
Usn's IT Blog for Linux, Oracle, Asterisk
http://www.usn-it.de

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http://www.freelists.org/webpage/oracle-l

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