How can I prevent end users from connecting to the database?
The preferred mode of setting an application context is during the ON LOGON trigger — before the application can even do anything in the database. I don’t understand, how can ON-LOGON trigger determine, is connection made trough application or SQL*Plus?
How to limit Oracle connection based on IP?
PLEASE CONTACT YOUR DBA.’); END IF; ELSE NULL; END CASE; END IF; EXCEPTION — Avoid problems when fails to get GLOBAL_NAME or PROFILE (Data Guard) WHEN NO_DATA_FOUND THEN NULL; END; / PS: If there is no row for some ( SESSION_USER) in the table, the user will not be blocked.
How to restrict access to the database by ” program “?
There is no enforcible way to restrict access to the database by “program”. For example — if your program was “foo.exe” and you only wanted foo.exe to connect — all i would have to do is: run foo.exe (aka sqlplus) and be done with it….
Can a user access data from any client?
That is my entire point. If the application security is REMOVED from the application and put back with the data (where in my opinion is rightly belongs) you can safely access the data from ANY CLIENT, ANY WHERE, ANY TIME. If you lock the security in the client, you can only access the data via that client.
How to enable or disable IP address blocking in sqlnet?
Open it up and insert the following line: This turns on the hostname/IP checking for your listeners. After this, you can supply lists of nodes to enable/disable, as such: Note that if you only specify invited nodes, all others will be excluded, so there is really no reason to do both.
Where is the secret in the sqlnet Ora file?
The secret lies in the SQLNET.ORA file. This file can be found in your $ORACLE_HOME/network/admin directory along with your tnsnames.ora and listener.ora. Open it up and insert the following line: This turns on the hostname/IP checking for your listeners.