Just to clarify the intended target "HOST's", I believe you are referring to the actual Linux VM's and not ESX servers.
Balance currently uses Port 22 for the default port for both Physical and Virtual *NIX servers. However; there is a way to change the specified port.
For virtual *nix, the process is a bit tedious, After selecting the Server for the unmonitored servers list, the server should fail to communicate due to the port shift.
Select the server name and then select the EDIT option. You would need to manually change each server discovered to the desired port. (See attached image)
For Physical servers, the option is available during the setup.
Mr. Peter Lauterbach (Balance Product Manager) firstname.lastname@example.org can be contacted for product enhancement requests.
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OnCommand Insight SE
It about virtual Linux servers that don't use the default port 22 for SSH-Access, therefore monitoring through the link "vCenter unmonitored servers" site won't work and generate a timeout error.
I',m looking for a way to set a non-default port for an unmonitored VM and/or change the IP-Adress if the vm has more than one and balance picks the wrong one.
Ok. That makes more sense. Unfortunately for VM's that have NOT been monitored by Balance you can only change the SSH port via a NetApp support case. Are you guys customers of Balance or just evaluating the product? If you are a customer you can open a support case and they can help you make this change.
Let me know if you have any questions.