Progress
Database Administration
Guide and Reference
Operating Systems and Database Security
Each operating system provides security measures that you can use to protect your database.
You might want to allow access to the database from within a Progress 4GL session, but not from the operating system command level. On UNIX, you can use the operating system permissions to define security for the application database file.
Protecting the application database file using operating system permissions prevents users from accessing the database outside of the Progress 4GL, or with CONNECT statements from a Progress 4GL session, but it does not prevent anyone from starting single-user or multi-user Progress 4GL sessions. It also does not prevent anyone from accessing the database through a server.
To protect the database file with operating system permissions, create the database under a particular user ID. Change the permission of the database table by entering the following UNIX command:
This permission ensures that only the owner of the database file can access the file directly.
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