How to check the Oracle database connection encryption type?(between Oracle database and other client applications)How do I assure between Oracle database and Toad the database connection is encrypted? (My Toad version is 9.5 and Oracle database version is 11g)
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Unless you've done 'something' to encrypt the connection it is in the clear.
And if you want to encrypt this communication using an Oracle solution, you must be using the Enterprise Edition and you must purchase the Advanced Security addon.
If you the free way of doing this, use Stunnel https://www.stunnel.org/index.html
Amazingly enough, Stunnel and Advanced Security have many similarities. I've installed both, and like Stunnel.
Stunnel is great, especially when you want to make https connections from a stored procedure. Oracle requires all sorts of hoops like installing the client's certificate in the Wallet (which I think is now gone--finally--yet replaced with some other cumbersome idea. Where as, Stunnel just needs 3 lines of code in a setup file.
Anyway, unless you have a requirement to use Advanced Security Option, look into Stunnel.
And to see if you're running ASO, look in your sqlnet.ora file for strange entries this:
Look in both the client and the server's sqlnet.ora file.