Listener running under Grid, Agent running under oracle. Reluctant to add password to listener.

On our 11g RAC nodes the listeners are owned by grid.

The agent is owned by oracle.

We therefore see a number of authentication TNS messages (e.g. TNS-01190) in the listener alert log as the agent attempts to issue lsnrctl command such as "show log status".

From reading around the subject within MOS it seems that the solution is to put a password on the listener.

We are a little reluctant to do this as this will reduce the listener security. I.e. without the password, the only way to administer the listener is with OS authentication which we prefer,