Roland
Thank you for the quick and excellent reply!
Reference your comment, "Are you sure that the DNS server IP you entered during installation is correct?"; Since I have had prior experience installing Ubuntu 18.04 LTS and knew from that experience that the network connection simply works without requiring a manual setup, I set up the Public Network during Qlustar installation using DHCP, specifically so it would automatically be correct. Perhaps my installation approach here is wrong? One of the goals of my academic project is to demonstrate that a small, personal use HPC cluster can be set up and managed with ease. I was delighted to find Qlustar during my initial investigation, because it looks like the perfect platform for that part of my project. It appears from my experience here that my approach of installing Qlustar directly on the Head node of a small cluster is not the simplest way of installing and using Qlustar. The Install Guide has no step by step instruction for manually setting up the Public Network, and reading through the Install Guide again, I see the text and notes in Chapter 3 Step 9 "Additional Settings" appear to indicate that setting up a Virtual Front End as a VM on the Head node is a preferred setup. Can you advise me on what would be the simplest way to set up Qlustar on a physical arrangement of 1 Head node and 4 Compute nodes? I would be eager to try whatever you might suggest.
Kim