Rich, We are running the highest listener. The problem with 10G is it isn't compatible with lower releases. For example if you do a "lsnrctl status" etc. Typically what happens is some monitor program like BMC's Patrol or OpenView issues a command using the lsnrctl from whatever ORACLE_HOME exists for the database it is monitoring. 10G doesn't like that if it isn't a 10G OH. Was wondering if a more elegant/problem-free solution than my soft link exists. Thanks Larry -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] Sent: Wednesday, May 24, 2006 11:34 AM To: oracle-l Subject: RE: Listener with mixed releases I wish I had kept a MetaLink and/or documentation article I ran across once that states that the listener major version should match the DB major version. And we did run into problems trying to have one listener dole out connections for both 8.1.7 and 9.2.0 DBs. So, using in part the explicit auto-registration techniques described here in another thread, we have separate listeners, running of course on different ports. HTH! GL! Rich -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Wolfson Larry - lwolfs Sent: Wednesday, May 24, 2006 11:27 AM To: oracle-l Subject: Listener with mixed releases Got a couple of clients who had us install 10G on some servers where some have DBs and some don't. The installers activated the 10G listener (because we always use highest version) and we got 1000s of oerr tns 12618 12618, 00000, "TNS:versions are incompatible" // *Cause: The two machines are running incompatible versions of TNS. // *Action: Check the version numbers, and upgrade the machine with the // smaller one. [snip] -- //www.freelists.org/webpage/oracle-l *************************************************************************** The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please resend this communication to the sender and delete the original message or any copy of it from your computer system. Thank You. **************************************************************************** -- //www.freelists.org/webpage/oracle-l