All, I'm investigating how one does release management in RHEL. Specifically if we have the standard dev/test/prod sort of setup then updating the RHEL servers in dev from the RHN at say Oct 01 2009 may install different software than running up2date from production at say Dec 01 2009. Is it possible (without the use of a satellite server) to specify that the same set of RPMs get applied to all servers - so if we test the Oct image we know that the exact same rpms will be applied in production. In a yum based environment I know that I'm searching for the keyword repository to setup a custom repository, in RHN this seems to equate to a channel but I'm having difficulty finding an idiots guide to how to configure a channel to do release management. Just buy and setup a satellite server may not be an option right now. -- Niall Litchfield Oracle DBA http://www.orawin.info