"S" == saeed s jahromi saeed.s.jahromi@gmail.com writes:
Hi Saeed,
please read the installation guide https://docs.qlustar.com/Qlustar/12.0/ClusterOS/installation-guide.html Point "9. Additional Settings"
Other than for system stability/security reason, another important argument for an FE node (virtual or physical) is that only then you are guaranteed that users see the same software environment on the machine where they access the cluster (FE node) and on the compute nodes where jobs are run.
To sum it up: Giving users access to the head-node directly is a pretty bad idea.
Best,
Roland
S> However, all the users that I create can not connect to S> the head node because it says the user does not have S> premission. I also chose to create a virtual demo cluster during S> the installation and the demo user which is created during the S> installation also does not have permission to ssh login to the S> head node.