Lesson 13

Date: 4/25/2018
High Performance Computing (part II: MPI)
Linux System Administration


User accounts for MPI runs


Exercise
  • Start master and n01 VMs: 
    virsh start master
virsh start n01
  • Login to master and check if user account edward exists: 
    virsh console master
sudo -s
id edward
  • Edit file /etc/exports and comment the line with centmaster host: 
    /NFS/home   n01(rw)
#/NFS/home   centmaster(rw)
    Run command exportfs -a
  • Login as user edward to VM master and generate SSH RSA public/private keys for passwordless authentication. The passphrase should be empty: 
    su - edward
whoami
ssh-keygen -t rsa
cd .ssh
cp id_rsa.pub  authorized_keys
  • As user edward, ssh to n01 from master
    The user should be able to access n01 without password.



    • Take me to the Course Website