I read in this document An Oracle White Paper December 2015 Oracle Audit Vault and Database Firewall
that for a Database Firewall Proxy configuration to also make
...'changes to the database listener to reject direct connections'
I haven't done much Listener configuration and am not finding anything on how to have the listener reject direct connections.
My question is further complicated by the fact that I have one listener on the database server for 7 databases.
Currently only one is setup to use the Database Firewall Proxy configuration. How can I block direct connections to just
that one database?