Oracle Connection Manager (CMAN) is a little known tool that provides a database proxy server and network access control for Oracle databases.  This is a summary and a copy of a presentation that I presented about CMAN to the Sydney Oracle Meetup.

The official description is that “Oracle Connection Manager is a multipurpose networking solution that offers increased scalability, multiprotocol connectivity and secure network access control.”

In reality Connection Manager is -

You should look at using CMAN if you want -


The presentation describes how to install CMAN, how to configure it for redundant HA operation and some commands for managing CMAN.

for further detail please look at the attached presentation.


Download this file (cman.pdf)cman.pdf[Using Oracle Connection Manager for seamless HA DB connectivity]809 kB