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Authentication trick



Hi,

some commercial softwares use a trick to avoid copy of a db, license-crack, etc. They use generate a key -> "ID of db-instance". For example, if you dump a db on other machine with postgres installed, this key will be different and so application will not start.

It was good for Oracle, DB2 and MS-SQL. Is there a "similar key" for Postgres? Is it possible retrieve it via-jdbc? How?

Thanks,
Giulio



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