HFSS15: Authentication on Linux (RSH & SSH) for HFSS

An important step in using a high performance cluster is setting up authentication across machines in such a way that the machines can be accessed without a password. By default HFSS uses SSH authentication on Linux to spawn commands on the remote machines but also supports RSH. The selection of which to use is made on the solver tab of the Tools/Options/HFSS Options dialog.