I would like to install this tool on my ESX hosts, but I would like to ask you if you had any troubles with this tool? I will probably use it only for mbrscan/mbralign and nfs configuration, so my configuration is not described in their document (they only mention fc/iscsi), so I assume no errors should occur?

What about this SSL connection? is it needed? For what?

and these ports openen during install, can I close them down (20,21,23,80,443)? Will this cause any unexpected problems?

thanks in advance for any answer.