No. It adds a measure of security for your listener. It does not effect applications and users connecting to the database. Reginald W. Bailey Your Friendly Neighborhood DBA Technology & Operations - TSS/CB/CTO Technology Database Management 713-216-7703 (Office) 281-798-5474 (Mobile) e-mail: reginald.w.bailey@xxxxxxxxxxxx This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of JPMorgan Chase & Co., its subsidiaries and affiliates -- //www.freelists.org/webpage/oracle-l