1. COBRAS will only export from Unity 4.0(5) and later - 4.0(4) will not allow exports (the DB functions COBRAS uses were not all in place until the 4.0(5) release). You'll have to upgrade to 4.0(5) or later to use COBRAS.
the help file has the details on how you setup the Connection 7.0 server to accept a connection from COBRAS (which runs on a Windows box on your network) - basically you setup access to the Conneciton database via an ODBC proxy server built into Connection - much easier than wrestling with an SSH server and "pulling" the file over as the CSV migration tool requires.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.